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

Abstract

The application discloses a method for disassembling an air conditioner, the air conditioner comprising: a one-way valve arranged at an outlet of a compressor and an exhaust pipe connected between an outdoor heat exchanger and a four-way valve, so that refrigerant flowing into the outdoor heat exchanger cannot flow back to the compressor; an electronic expansion valve arranged between an indoor heat exchanger and the outdoor heat exchanger; and a strong electric mechanical switch used for controlling power-on or power-off of the air conditioner according to a signal; the method comprising: in response to a disassembling instruction, controlling the air conditioner to run in a cooling mode, and adjusting a running frequency of the compressor to a highest frequency; controlling the electronic expansion valve to be fully closed, and the compressor, an indoor fan and an outdoor fan to be stopped, and the strong electric mechanical switch to be powered off; after the air conditioner is assembled and the strong electric mechanical switch is powered on again, controlling the electronic expansion valve to be fully opened and then closed; and controlling the air conditioner to run in the cooling mode, and controlling running states of the compressor, the indoor fan and the outdoor fan according to an exhaust temperature of the compressor so that system refrigerant is sufficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent household appliances, for example to a method and device for disassembling an air conditioner, an air conditioner and a storage medium. BACKGROUND

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

[0003] The related art discloses a manual disassembly method. Before the disassembly worker disassembles the air conditioner in the existing mode of the air conditioner, the refrigerant of the air conditioner needs to be recovered to the outdoor unit, and then the power is turned off before disassembly. At present, the disassembly worker operates the air conditioner in the refrigeration mode, closes the high-pressure valve, and closes the low-pressure valve. In this way, the refrigerant can enter the outdoor unit of the air conditioner, and then the power is turned off for disassembly. After the disassembly is completed, the high-pressure valve is opened, and the low-pressure valve is opened. Then the power is turned on and the machine is started.

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

[0005] In the process of manual disassembly, the refrigerant recovery step in the disassembly process is complicated, and if the disassembly worker forgets to turn off the power before disassembly, it will cause great safety hazards.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a method and device for disassembling an air conditioner, an air conditioner and a storage medium, so that in the disassembly process, the disassembly worker does not need to manually operate the high-pressure valve and the low-pressure valve, and manually turn off the power. The air conditioner is intelligent to complete the recovery and power-off of the refrigerant of the air conditioner, reduce the operation steps of the disassembly worker, automatically turn off the power to avoid the safety hazards of the disassembly worker forgetting to turn off the power before disassembly, and make the disassembly operation simple, convenient, safe and reliable.

[0009] In some embodiments, the air conditioner comprises: a one-way valve arranged at an outlet of the compressor and an exhaust pipe connected between the outdoor heat exchanger and the four-way valve, so that the refrigerant 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 strong electric mechanical switch for controlling the power-on or power-off of the air conditioner according to a signal; the method comprises: in response to a disassembly instruction, controlling the air conditioner to run in a cooling mode, and adjusting the operating frequency of the compressor to the highest frequency; controlling the electronic expansion valve to be fully closed, and the compressor, the indoor fan, the outdoor fan to be stopped, and the strong electric mechanical switch to be powered off; in the case that the air conditioner is installed and the strong electric mechanical switch is powered on again, controlling the electronic expansion valve to be fully opened and then closed; controlling the air conditioner to run in a cooling mode, and controlling the operating state of the compressor, the indoor fan and the outdoor fan according to the discharge temperature of the compressor to make the system refrigerant sufficient.

[0010] Optionally, adjusting the operating frequency of the compressor to the highest frequency comprises: controlling the compressor to increase the operating frequency at a first frequency increasing rate; in the case that the difference between the total circuit current and the system maximum limited frequency current meets a first difference condition, controlling the compressor to increase the operating frequency at a second frequency increasing rate; in the case that the difference between the total circuit current and the system maximum limited frequency current meets a second difference condition, or the operating frequency of the compressor increases to the highest frequency, stopping adjusting the operating frequency of the compressor; wherein the first frequency increasing rate is greater than the second frequency increasing rate.

[0011] Optionally, the system maximum limited frequency current can be 13A, and the highest frequency can be 70Hz. The first frequency increasing rate can be 5Hz / s. The second frequency increasing rate can be 1Hz / s.

[0012] Optionally, the difference between the total circuit current and the system maximum limited frequency current meeting the first difference condition comprises: the difference between the total circuit current and the system maximum limited frequency current being equal to a first current difference. Specifically, the first current difference can be 1A.

[0013] Optionally, the difference between the total circuit current and the system maximum limited frequency current meeting the second difference condition, or the operating frequency of the compressor increasing to the highest frequency comprises: the difference between the total circuit current and the system maximum limited frequency current meeting the second difference condition, and the operating frequency of the compressor reaching a first frequency value; or the operating frequency of the compressor increasing to the highest frequency, and the difference between the total circuit current and the system maximum limited frequency current meeting the second difference condition; wherein the first frequency value is less than the highest frequency.

[0014] Specifically, the difference between the total circuit current and the system maximum limited frequency current meeting the second difference condition comprises: the difference between the total circuit current and the system maximum limited frequency current being equal to zero.

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

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

[0017] Optionally, the electronic expansion valve is controlled to be fully opened and closed, the compressor, the indoor fan, the outdoor fan are stopped, and the strong current mechanical switch is powered off, including: controlling the electronic expansion valve to open; in the case that the electronic expansion valve is fully opened, controlling the electronic expansion valve to close; in the case that the electronic expansion valve is fully closed, controlling the compressor to run; in the case that the compressor running time reaches a first time length, controlling the compressor, the indoor fan, the outdoor fan to stop, and controlling the strong current mechanical switch to be powered off.

[0018] Optionally, the first time length can be 2min.

[0019] Optionally, the electronic expansion valve is controlled to be opened, including: controlling the electronic expansion valve to open at a first opening valve speed value. Specifically, the first opening valve speed value can be 10 steps / s.

[0020] Optionally, the electronic expansion valve is controlled to be closed, including: controlling the electronic expansion valve to close at a first closing valve speed value, the total number of steps of closing is a first step number value, and the closing time is a second time length. Specifically, the first closing valve speed value can be 10 steps / s. The first step number value can be 300 steps.

[0021] The second time length can be 35s.

[0022] Optionally, the electronic expansion valve is controlled to be fully opened and closed, including: controlling the electronic expansion valve to open; in the case that the electronic expansion valve is fully opened, controlling the electronic expansion valve to close.

[0023] Optionally, the electronic expansion valve is controlled to be opened, including: controlling the electronic expansion valve to open at a second opening valve speed value, and the opening time is a third time length. Specifically, the second opening valve speed value can be 10 steps / s. The third time length can be 35s.

[0024] Optionally, the electronic expansion valve is controlled to be closed, including: controlling the electronic expansion valve to close at a second closing valve speed value, the total number of steps of closing is a second step number value, and the closing time is a fourth time length. Specifically, the second closing valve speed value can be 10 steps / s. The second step number value can be 200 steps.

[0025] The fourth time length can be 20s.

[0026] Optionally, the operation state of the compressor, the indoor fan and the outdoor fan is controlled according to the discharge temperature of the compressor to make the system refrigerant sufficient, comprising: determining that the system refrigerant is normal or the system refrigerant needs to be judged again according to the discharge temperature of the compressor and the first preset system discharge temperature corresponding to the first frequency value; in the case that the system refrigerant is normal, controlling the compressor, the indoor fan and the outdoor fan to stop running, and controlling the electronic expansion valve to open to complete disassembly and enter the standby state; in the case that the system refrigerant needs to be judged again, controlling the compressor to increase the frequency to the second frequency value, and determining that the system refrigerant is normal or short according to the discharge temperature of the compressor and the second preset system discharge temperature corresponding to the third frequency value; controlling the operation state of the compressor, the indoor fan and the outdoor fan according to the case that the system refrigerant is normal or short to make the system refrigerant sufficient.

[0027] Specifically, the first preset system discharge temperature can be 44℃, and the second preset system discharge temperature can be 61℃. The second frequency value can be 30Hz. The third frequency value can be 40Hz.

[0028] Optionally, determining that the system refrigerant is normal or the system refrigerant needs to be judged again according to the discharge temperature of the compressor and the first preset system discharge temperature corresponding to the current frequency value of the compressor, comprising: in the case that the discharge temperature of the compressor is less than or equal to the sum of the first preset system discharge temperature and a set temperature difference value, determining that the system refrigerant is normal; in the case that the discharge temperature of the compressor is greater than the sum of the first preset system discharge temperature and the set temperature difference value, determining that the system refrigerant needs to be judged again. Specifically, the set temperature difference value can be 2℃.

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

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

[0031] Optionally, determining that the system refrigerant is normal or short according to the discharge temperature of the compressor and the second preset system discharge temperature, comprising: in the case that the discharge temperature of the compressor is less than or equal to the sum of the second preset system discharge temperature and a set temperature difference value, determining that the system refrigerant is normal; in the case that the discharge temperature of the compressor is greater than the sum of the second preset system discharge temperature and the set temperature difference value, determining that the system refrigerant is short.

[0032] Optionally, the control of the running state of the compressor, the indoor fan and the outdoor fan to make the system refrigerant sufficient comprises: in the case that the system refrigerant is normal, controlling the compressor, the indoor fan and the outdoor fan to all stop, and controlling the electronic expansion valve to open to complete the disassembly and enter the standby state; in the case that the system refrigerant is insufficient, controlling the compressor, the indoor fan and the outdoor fan to all stop; and issuing a prompt of system refrigerant shortage.

[0033] Optionally, after the control of the electronic expansion valve to open to complete the disassembly, and before entering the standby state, the method further comprises: issuing a prompt of disassembly completion. Specifically, the prompt of disassembly completion comprises: controlling the display module to stop displaying the disassembly. More specifically, the control of the display module to stop displaying the disassembly comprises: controlling the display module to stop displaying the word "CZ".

[0034] Specifically, the prompt of system refrigerant shortage comprises: controlling the display module to continuously display the prompt of system refrigerant shortage. More specifically, the control of the display module to continuously display the prompt of system refrigerant shortage comprises: controlling the display module to continuously display the word "F13".

[0035] Optionally, the control of the electronic expansion valve to open comprises: controlling the electronic expansion valve to open at a fourth opening valve speed value, and the opening valve time length is a fifth time length. Specifically, the fourth opening valve speed value can be 10 steps / s. The fifth time length can be 25 s.

[0036] Optionally, the control of the running of the compressor, the indoor fan and the outdoor fan comprises: controlling the indoor fan and the outdoor fan to all run at a high wind speed, and controlling the compressor to increase the frequency to a second frequency value at a fourth frequency increasing rate.

[0037] Specifically, the fourth frequency increasing rate can be 3 Hz / s.

[0038] Optionally, in the case that the air conditioner is installed and the strong current mechanical switch is powered on again, the method further comprises: continuously issuing a prompt of disassembly in progress. Specifically, the continuous prompt of disassembly in progress comprises: controlling the display module to continuously display the disassembly in progress. More specifically, the control of the display module to continuously display the disassembly in progress comprises: controlling the display module to continuously display the word "CZ".

[0039] Optionally, after the control of the air conditioner to run in the cooling mode, and before the adjustment of the running frequency of the compressor to the highest frequency, the method further comprises: controlling the indoor fan and the outdoor fan to all run at a high wind speed.

[0040] In some embodiments, the air conditioner comprises: a one-way valve arranged at an outlet of a compressor and an exhaust pipe connected between an outdoor heat exchanger and a four-way valve, so that the refrigerant flowing into the outdoor unit does not flow back to the compressor; an electronic expansion valve arranged between an indoor heat exchanger and the outdoor heat exchanger; a strong electric mechanical switch for controlling power-on or power-off of the air conditioner according to a signal; the device comprises: a first control module configured to control the air conditioner to run in a cooling mode and adjust a running frequency of the compressor to a highest frequency in response to a piece of installation removal instruction; a second control module configured to control the electronic expansion valve to be fully closed, the compressor, an indoor fan and an outdoor fan to be powered off, and the strong electric mechanical switch to be powered off; a third control module configured to control the electronic expansion valve to be fully opened and then closed in a case that the air conditioner is installed and the strong electric mechanical switch is powered on again; and a fourth control module configured to control the air conditioner to run in the cooling mode and control running states of the compressor, the indoor fan and the outdoor fan according to an exhaust temperature of the compressor so as to make the system refrigerant sufficient.

[0041] In some embodiments, the device comprises a processor and a memory storing program instructions, and the processor is configured to execute the method for installation removal of an air conditioner when the program instructions are run.

[0042] In some embodiments, the air conditioner comprises: an air conditioner body comprising: a one-way valve arranged at an outlet of a compressor and an exhaust pipe connected between an outdoor heat exchanger and a four-way valve, so that the refrigerant flowing into the outdoor unit does not flow back to the compressor; an electronic expansion valve arranged between an indoor heat exchanger and the outdoor heat exchanger; and a strong electric mechanical switch for controlling power-on or power-off of the air conditioner according to a signal; and the device for installation removal of the air conditioner is installed in the air conditioner body.

[0043] In some embodiments, the storage medium stores program instructions, and the program instructions are executed to perform the method for installation removal of an air conditioner when the program instructions are run.

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

[0045] In the process of disassembly, the high pressure valve and the low pressure valve do not need to be manually operated, and the manual power operation is not needed. By setting the check valve, the refrigerant in the compressor can flow into the outdoor heat exchanger and not flow back to the compressor. First, make the air conditioner run in the refrigeration mode, and the compressor frequency is adjusted to the highest frequency, so that the refrigerant enters the outdoor unit of the air conditioner. Control the electronic expansion valve to be fully closed, and the compressor, indoor fan and outdoor fan are stopped. The power mechanical switch is powered off, the air conditioner is disassembled, the refrigerant recovery and power off of the air conditioner are intelligently completed, and the operation steps of the disassembler are reduced. Since the power mechanical switch can realize intelligent control of the power on or power off of the air conditioner, the safety hazard of forgetting to power off and disassemble by the disassembler is avoided, and the disassembly operation is simple, convenient, safe and reliable. In the case that the air conditioner is disassembled and the power mechanical switch is powered on again, first control the electronic expansion valve to be opened, and then control the air conditioner to run in the refrigeration mode. According to the discharge temperature of the compressor, the running state of the compressor, indoor and outdoor fans is controlled, which is beneficial to better determine whether the system refrigerant is short, so as to remind to supplement the refrigerant and ensure the sufficiency of the refrigerant amount in the system after disassembly.

[0046] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0047] One or more embodiments are exemplified by the corresponding drawings, which are exemplary and do not constitute limitations on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limits, and wherein:

[0048] Figure 1 is a schematic diagram of a 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 is a schematic diagram of an air conditioner provided by an embodiment of the present disclosure. Detailed Implementation

[0055] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0056] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

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

[0058] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0059] The term "and / or" describes an association 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" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0061] Combination Figure 1 As shown, this embodiment of the present disclosure provides an air conditioner, including: a one-way valve 1, an electronic expansion valve 2, and a high-voltage electromechanical switch. The one-way valve 1 is disposed at the outlet of the compressor 6, located between the exhaust pipe connecting the outdoor heat exchanger 4 and the four-way valve 5, preventing the refrigerant flowing into the outdoor heat exchanger 4 from flowing back to the compressor 6. The electronic expansion valve 2 is disposed between the indoor heat exchanger 3 and the outdoor heat exchanger 4. The high-voltage electromechanical switch is used to control the air conditioner to power on or off according to a signal.

[0062] Optionally, the air conditioner also includes a display module. The display module is connected to the processor. When "CZ" is displayed, it indicates that disassembly or assembly is in progress. When "F13" is displayed, it indicates that the refrigerant is low. When neither "CZ" nor "F13" is displayed, it indicates that disassembly or assembly is complete and the refrigerant is not low.

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

[0064] With the air conditioner provided by the embodiments of the present disclosure, during the disassembly process, the high-pressure valve and the low-pressure valve do not need to be manually operated by the disassembly worker, and the power-off operation does not need to be manually operated, and the one-way valve is arranged to control the refrigerant in the compressor to flow into the outdoor heat exchanger, and the refrigerant does not flow back to the compressor, so that the air conditioner intelligently completes the recovery and power-off of the refrigerant of the air conditioner, and the operation steps of the disassembly worker are reduced. Since the strong electric mechanical switch can realize intelligent control of the power-on or power-off of the air conditioner, the safety hazard of forgetting to power off for disassembly by the disassembly worker is avoided, and the disassembly operation is simple, convenient, safe and reliable.

[0065] Based on the above air conditioner, in combination with Figure 2 The embodiments of the present disclosure provide a method for disassembly of an air conditioner, comprising:

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

[0067] S202, the air conditioner controls the electronic expansion valve to be fully closed, the compressor, the indoor fan and the outdoor fan are stopped, and the strong electric mechanical switch is powered off.

[0068] S203, after the air conditioner is assembled and the strong electric mechanical switch is powered on again, the air conditioner controls the electronic expansion valve to be fully opened and then closed.

[0069] S204, the air conditioner controls the air conditioner to run in a cooling mode, and controls the operating state of the compressor, the indoor fan and the outdoor fan according to the exhaust temperature of the compressor to make the system refrigerant sufficient.

[0070] The method for disassembling the air conditioner provided by the embodiment of the present disclosure is used in the disassembling process, and manual operation of the high-pressure valve and the low-pressure valve and manual power-off operation of the disassembling worker are not required. The refrigerant in the compressor can flow into the outdoor heat exchanger and not flow back to the compressor by setting the check valve. The air conditioner is first operated in the cooling mode, the compressor frequency is adjusted to the highest frequency, the refrigerant enters the outdoor unit of the air conditioner. The electronic expansion valve is controlled to be fully closed, the compressor, the indoor fan and the outdoor fan are stopped, the power of the strong current mechanical switch is turned off, the air conditioner is disassembled, the refrigerant recovery and power-off of the air conditioner are intelligently completed, and the operation steps of the disassembling worker are reduced. Since the strong current mechanical switch can realize intelligent control of the power-on or power-off of the air conditioner, the safety hazard of forgetting to power off and disassemble by the disassembling worker is avoided, and the disassembling operation is simple, convenient, safe and reliable. In the case that the air conditioner is disassembled and the strong current mechanical switch is powered on again, the electronic expansion valve is first controlled to be opened, and then the air conditioner is controlled to operate in the cooling mode. The operating state of the compressor, the indoor fan and the outdoor fan is controlled according to the discharge temperature of the compressor, which is beneficial to better determine whether the system refrigerant is insufficient, to remind the refrigerant to be supplemented, and to ensure the sufficiency of the refrigerant amount in the system after disassembly.

[0071] Optionally, the air conditioner adjusts the operating frequency of the compressor to the highest frequency, comprising:

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

[0073] In the case that the difference between the total circuit current and the system maximum limit frequency current meets the first difference condition, the air conditioner controls the compressor to increase the operating frequency at a second frequency increasing rate.

[0074] In the case that the difference between the total circuit current and the system maximum limit frequency current meets the second difference condition, or the operating frequency of the compressor increases to the highest frequency, the air conditioner stops adjusting the operating frequency of the compressor.

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

[0076] In this way, after operating in the cooling mode, the compressor is first increased in frequency at a faster frequency increasing rate, and then increased in frequency at a slower frequency increasing rate if the difference between the total circuit current and the system maximum limit frequency current meets the first difference condition, until the difference between the total circuit current and the system maximum limit frequency current meets the second difference condition, or the operating frequency of the compressor increases to the highest frequency. In this way, it is beneficial to faster adjust the operating frequency of the compressor to the highest frequency, faster flow the refrigerant in the indoor unit into the outdoor unit, improve the speed of refrigerant recovery of the air conditioner, and avoid the total circuit current exceeding the system maximum limit frequency current caused by the excessively high frequency of the compressor.

[0077] Optionally, the system maximum limited frequency current can be 13A, and the maximum frequency can be 70Hz. The first frequency increasing rate can be 5Hz / s. The second frequency increasing rate can be 1Hz / s. The system maximum limited frequency current, the maximum frequency, the first frequency increasing rate and the second frequency increasing rate can be adjusted according to the properties of the air conditioner, which are not listed here. In this way, the system maximum limited frequency current, the maximum frequency, the first frequency increasing rate and the second frequency increasing rate are limited, which is conducive to improving the refrigerant recovery speed of the air conditioner and avoiding the total circuit current exceeding the system maximum limited frequency current caused by the high frequency of the compressor.

[0078] Optionally, the difference between the total circuit current and the system maximum limited frequency current satisfies a first difference condition, including: the difference between the total circuit current and the system maximum limited frequency current is equal to a first current difference. Specifically, the first current difference can be 1A. In this way, when the difference between the total circuit current and the system maximum limited frequency current is small, the compressor continues to increase the frequency at a slower frequency increasing rate, which avoids the total circuit current exceeding the system maximum limited frequency current caused by the high frequency of the compressor.

[0079] Optionally, the difference between the total circuit current and the system maximum limited frequency current satisfies a second difference condition, or, the case that the operating frequency of the compressor increases to the maximum frequency includes: the difference between the total circuit current and the system maximum limited frequency 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 increases to the maximum frequency, and the difference between the total circuit current and the system maximum limited frequency current satisfies the second difference condition. Wherein, 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 limited frequency 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 limited frequency current satisfies the third difference condition, the compressor stops increasing the frequency, which is conducive to avoiding the total circuit current exceeding the system maximum limited frequency current caused by the high frequency of the compressor.

[0080] Specifically, the difference between the total circuit current and the system maximum limited frequency current satisfies the second difference condition, including: the difference between the total circuit current and the system maximum limited frequency current is equal to zero. In this way, if the total circuit current is equal to the system maximum limited frequency current, and the operating frequency of the compressor reaches a first frequency value without reaching the maximum frequency, if the compressor continues to increase the frequency, it will cause the total circuit current to exceed the system maximum limited frequency current, at this time, the compressor stops increasing the frequency and continues to operate at the first frequency. While improving the refrigerant recovery speed of the air conditioner, it is conducive to avoiding the total circuit current exceeding the system maximum limited frequency current caused by the high frequency of the compressor.

[0081] Specifically, the difference between the total circuit current and the system maximum limited frequency current satisfies a third difference condition, including: the difference between the total circuit current and the system maximum limited frequency 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 limited frequency current is small but does not reach the system maximum limited frequency current, and at this time the operating frequency of the compressor has reached the highest frequency, at this time the frequency cannot continue to rise. At the same time of avoiding the total circuit current exceeding the system maximum limited frequency current caused by the frequency of the compressor being too high, it is beneficial to improve the speed of refrigerant recovery of the air conditioner.

[0082] Specifically, the first frequency value can be 67Hz. The value of the first frequency value can be adjusted according to the properties of the air conditioner, which is not listed here. In this way, the first frequency value is 3Hz different from the highest frequency, and the operating frequency of the compressor is close to the highest frequency. If the total circuit current has reached the system maximum limited frequency current, in order to avoid the total circuit current exceeding the system maximum limited frequency current, the compressor cannot continue to rise in frequency, at this time the compressor still maintains a high operating frequency, and the speed of refrigerant recovery of the air conditioner can also remain high.

[0083] Optionally, the air conditioner controls the electronic expansion valve to be fully closed, the compressor, the indoor fan, the outdoor fan are stopped, and the strong electric mechanical switch is powered off, including:

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

[0085] In the case that the electronic expansion valve is fully opened, the air conditioner controls the electronic expansion valve to be closed.

[0086] In the case that the electronic expansion valve is fully closed, the air conditioner controls the compressor to operate.

[0087] In the case that the operating time of the compressor reaches the first time length, the air conditioner controls the compressor, the indoor fan, the outdoor fan to be stopped, and controls the strong electric mechanical switch to be powered off.

[0088] In this way, in the case that the frequency rising of the compressor ends, the electronic expansion valve is first kept open, which is beneficial to the refrigerant flowing into the outdoor unit. Then the electronic expansion valve is controlled to be closed, and after the electronic expansion valve is closed, the compressor is controlled to operate for the first time length, so that the refrigerant in the compressor continues to flow into the outdoor unit, and since the electronic expansion valve is closed, the refrigerant cannot flow back to the indoor unit, which is beneficial to the refrigerant in the indoor unit flowing into the outdoor unit. At this time, the compressor, the indoor fan, the outdoor fan are stopped, and the strong electric mechanical switch is powered off, so that the air conditioner is disassembled, and the air conditioner intelligently completes the recovery and power-off of the refrigerant of the air conditioner, reducing the operation steps of the disassembly worker.

[0089] Optionally, the first time length can be 2 minutes. The first time length can be adjusted according to the properties of the air conditioner, which will not be listed one by one. In this way, the compressor continues to run for 2 minutes after the electronic expansion valve is closed, and then stops, which is beneficial to make the refrigerant in the indoor unit flow into the outdoor unit.

[0090] 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 first opening valve speed value. Specifically, the first opening valve speed value can be 10 steps per second. In this way, the electronic expansion valve opens the valve at the first opening valve speed value, which is beneficial to the refrigerant flowing into the outdoor unit faster.

[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 closing valve speed value, the total number of steps of closing the valve is a first step value, and the closing time length is a second time length. Specifically, the first closing valve speed value can be 10 steps per second. The first step value can be 300 steps. The second time length can be 35 seconds. The values of the first closing valve speed value, the first step value, and the second time length can be adjusted according to the properties of the air conditioner, which will not be listed one by one. In this way, after the electronic expansion valve is fully opened, the electronic expansion valve is closed at the first closing valve speed value, and the total number of steps and the closing time length are limited, which is beneficial to closing the electronic expansion valve faster, thereby facilitating the refrigerant flowing into the outdoor unit faster.

[0092] Optionally, the air conditioner controls the electronic expansion valve to close after being fully opened, including: the air conditioner controls the electronic expansion valve to open the valve. In the case that the electronic expansion valve is fully opened, the air conditioner controls the electronic expansion valve to close the valve. In this way, in the case that the air conditioner is installed and the strong electric mechanical switch is powered on again, the electronic expansion valve is controlled to close after being fully opened, which makes the opening and closing of the electronic expansion valve after the installation of the air conditioner intelligent, and reduces the operation steps of the dismounting worker.

[0093] 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 second opening valve speed value, and the opening time length is a third time length. Specifically, the second opening valve speed value can be 10 steps per second. The third time length can be 35 seconds. The values of the second opening valve speed value and the third time length can be adjusted according to the properties of the air conditioner, which will not be listed one by one. In this way, in the case that the air conditioner is installed and the strong electric mechanical switch is powered on again, it is beneficial to control the electronic expansion valve to open faster, thereby speeding up the dismounting and mounting speed.

[0094] Optionally, the air conditioner controls the electronic expansion valve to close, including: the air conditioner controls the electronic expansion valve to close at a second closing valve speed value, the total number of closing valve steps is a second step value, and the closing valve time length is a fourth time length. Specifically, the second closing valve speed value can be 10 steps / s. The second step value can be 200 steps. The fourth time length can be 20 s. The values of the second closing valve speed value, the second step value, and the fourth time length can be adjusted 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 strong electric mechanical switch is powered on again, after the electronic expansion valve is fully opened, the electronic expansion valve is controlled to be fully closed faster, thereby accelerating the disassembly and assembly speed.

[0095] Optionally, the air conditioner controls the running states of the compressor, the indoor fan, and the outdoor fan according to the discharge temperature of the compressor to make the system refrigerant sufficient, including:

[0096] The air conditioner determines whether the system refrigerant amount is normal or needs to be judged again according to the discharge temperature of the compressor and a first preset system discharge temperature, and the first preset system discharge temperature corresponds to a second frequency value.

[0097] In the case that the system refrigerant amount is normal, the air conditioner controls the compressor, the indoor fan, and the outdoor fan to stop running. The air conditioner controls the electronic expansion valve to open, issues a prompt that the disassembly and assembly are completed, and enters a standby state.

[0098] In the case that the system refrigerant amount needs to be judged again, the air conditioner controls the compressor to increase the frequency to a second frequency value, and determines whether the system refrigerant amount is normal or is short according to the discharge temperature of the compressor and a second preset system discharge temperature, and the second preset system discharge temperature corresponds to a third frequency value. The air conditioner controls the running states of the compressor, the indoor fan, and the outdoor fan according to whether the system refrigerant amount is normal or is short to make the system refrigerant sufficient.

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

[0100] Thus, the compressor, indoor and outdoor fans are first controlled to operate, and then whether the refrigerant is normal is first determined according to the exhaust temperature of the compressor and the first preset system exhaust temperature. If the refrigerant is normal, the compressor, indoor fan and outdoor fan are all stopped, the electronic expansion valve is opened, the disassembly is completed, and the standby state is entered. If the refrigerant is not normal in the first determination, the compressor is first increased in frequency, and then whether the refrigerant is short is secondly determined according to the exhaust temperature of the compressor and the second preset system exhaust temperature corresponding to the frequency after the increase. The operating state of the compressor, indoor fan and outdoor fan is controlled according to whether the refrigerant is short. This is favorable for better determining whether the system refrigerant is short, so as to remind the refrigerant to be supplemented and ensure that the refrigerant amount in the system after disassembly is sufficient.

[0101] Optionally, the air conditioner determines whether the system refrigerant amount is normal or needs to be determined again according to whether the system refrigerant amount is normal or needs to be determined again, including: in the case that 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 amount is normal; in the case that 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 amount needs to be determined again. Specifically, the value of the set temperature difference value can be 2℃. The value of the set temperature difference value can be adjusted 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 amount of the system is normal. At this time, the compressor, indoor fan and outdoor fan are all stopped, the electronic expansion valve is opened, the disassembly is completed, and the standby state is entered. This is favorable for better determining whether the system refrigerant is short, so as to remind the refrigerant to be supplemented and ensure that the refrigerant amount in the system after disassembly is sufficient.

[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 opening valve speed value, and the opening valve time length is a fourth time length. Specifically, the value of the third opening valve speed value can be 10 steps / s. The value of the fourth time length can be 25s. The values of the third opening valve speed value and the fourth time length can be adjusted according to the properties of the air conditioner, which is not listed one by one here. In this way, when the system refrigerant amount is normal, the electronic expansion valve can be opened, the air conditioner enters the standby state, and the disassembly process is all completed.

[0103] Optionally, the air conditioner controls the compressor to increase in frequency to a third frequency value, including: the air conditioner controls the compressor to increase in frequency to the third frequency value at a third frequency increasing rate. Specifically, the value of the third frequency increasing rate can be 10 steps / s. The value of the third frequency increasing rate can be adjusted according to the properties of the air conditioner, which is not listed one by one here. In this way, if the system refrigerant amount is not normal in the first determination, the frequency of the compressor can be increased faster, which is favorable for faster entering the next determination of whether the system refrigerant amount is short.

[0104] Optionally, the air conditioner determines the system refrigerant amount to be normal or insufficient according to the discharge temperature of the compressor and the second preset system discharge temperature, comprising: in the case that the discharge temperature of the compressor is less than or equal to the sum of the second preset system discharge temperature and the set temperature difference value, the air conditioner determines the system refrigerant amount to be normal. In the case that the discharge temperature of the compressor is greater than the sum of the second preset system discharge temperature and the set temperature difference value, the air conditioner determines the system refrigerant amount to be insufficient. In this way, if the discharge temperature of the compressor after frequency conversion is less than or equal to the sum of the second preset system discharge temperature corresponding to the discharge temperature after frequency conversion and the set temperature difference value, it is determined that the system refrigerant amount is normal. If the discharge temperature of the compressor after frequency conversion is greater than the sum of the second preset system discharge temperature corresponding to the discharge temperature after frequency conversion and the set temperature difference value, it is determined that the system refrigerant amount is insufficient. This is conducive to better determining whether the system refrigerant is insufficient, so as to remind the refrigerant to be supplemented and ensure the sufficiency of the refrigerant amount 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 make the system refrigerant sufficient according to whether the system refrigerant amount is normal or insufficient, comprising:

[0106] In the case that the system refrigerant amount is normal, the air conditioner controls the compressor, the indoor fan and the outdoor fan to all stop. The air conditioner controls the electronic expansion valve to open, issues a disassembly completion prompt and enters a standby state. In the case that the system refrigerant amount is insufficient, the air conditioner controls the compressor, the indoor fan and the outdoor fan to all stop and issues a system refrigerant insufficient prompt.

[0107] In this way, if the system refrigerant amount is normal, the compressor, the indoor fan and the outdoor fan are controlled to stop but the electronic expansion valve is opened to enter the standby state, and a disassembly completion prompt is issued. If the system refrigerant amount is insufficient, the compressor, the indoor fan and the outdoor fan are still controlled to stop but the electronic expansion valve is not opened, and a refrigerant insufficient prompt is issued. This is conducive to better reminding the refrigerant to be supplemented or the disassembly to be completed according to whether the system refrigerant is insufficient, so as to ensure the sufficiency of the refrigerant amount in the system after disassembly.

[0108] Optionally, after the electronic expansion valve is controlled to open to complete the disassembly, and before entering the standby state, it further comprises: issuing a disassembly completion prompt. Specifically, issuing the disassembly completion prompt comprises: controlling the display module to stop displaying the disassembly. More specifically, controlling the display module to stop displaying the disassembly comprises: controlling the display module to stop displaying the word "CZ".

[0109] Specifically, the air conditioner issues a system refrigerant insufficient prompt, comprising: the air conditioner controls the display module to continuously display the system refrigerant insufficient prompt. More specifically, the air conditioner controls the display module to continuously display the system refrigerant insufficient prompt, comprising: the air conditioner controls the display module to continuously display the word "F13". In this way, it is conducive to better prompting the refrigerant to be insufficient for the disassembly worker.

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

[0111] In this way, in the case of normal system refrigerant amount, the electronic expansion valve is controlled to open faster, so as to enter the standby state faster, complete the disassembly process, and improve the disassembly efficiency.

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

[0113] In this way, it is beneficial to increase the running frequency of the compressor faster, so as to judge whether the refrigerant is short faster.

[0114] Optionally, after the air conditioner is installed and the high-voltage mechanical switch is powered on again, the air conditioner also comprises: the air conditioner continues to issue a disassembly-in-progress prompt. Specifically, the air conditioner continues to issue a disassembly-in-progress prompt, comprising: the air conditioner controls the display module to continuously display disassembly-in-progress. More specifically, the air conditioner controls the display module to continuously display disassembly-in-progress, comprising: controlling the display module to continuously display the word "CZ". In this way, it is beneficial to better prompt the disassembler that disassembly is in progress.

[0115] Optionally, before the air conditioner adjusts the running frequency of the compressor to the highest frequency after the air conditioner controls the air conditioner to run in the cooling mode, the air conditioner also comprises: the air conditioner controls the indoor fan and the outdoor fan to run at a high wind speed.

[0116] In this way, it is beneficial to speed up the flow of refrigerant into the outdoor unit, thereby speeding up the speed of refrigerant recovery of the air conditioner.

[0117] In combination Figure 3 As shown in the figure, the embodiment of the present disclosure provides another method for disassembling the air conditioner, comprising:

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

[0119] S302, in the case that the difference between the total circuit current and the system maximum limited frequency current meets the first difference condition, the air conditioner controls the compressor to increase the operating frequency at a second frequency increasing rate.

[0120] S303, in the case that the difference between the total circuit current and the system maximum limited frequency current meets the second difference condition, or the operating frequency of the compressor increases to the highest frequency, the air conditioner stops adjusting the operating frequency of the compressor.

[0121] S304, the air conditioner controls the electronic expansion valve to be fully closed, the compressor, the indoor fan and the outdoor fan are stopped, and the strong electric mechanical switch is powered off.

[0122] S305, in the case that the air conditioner is disassembled and the strong electric mechanical switch is powered on again, the air conditioner controls the electronic expansion valve to be fully opened and then closed.

[0123] S306, the air conditioner controls the air conditioner to run in the refrigeration mode, and controls the operating states of the compressor, the indoor fan and the outdoor fan according to the discharge temperature of the compressor to make the system refrigerant sufficient.

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

[0125] The method for disassembling the air conditioner provided by the embodiment of the present disclosure is adopted, in the disassembling process, the high-pressure valve and the low-pressure valve do not need to be manually operated, and the power-off operation does not need to be manually performed, the refrigerant in the compressor can flow into the outdoor heat exchanger and cannot flow back to the compressor by setting the one-way valve. The air conditioner is first controlled to run in the refrigeration mode, the compressor is first controlled to increase the frequency at a faster frequency increasing rate, if the difference between the total circuit current and the system maximum limited frequency current meets the first difference condition, the compressor is then controlled to increase the frequency at a slower frequency increasing rate, until the difference between the total circuit current and the system maximum limited frequency current meets the second difference condition, or the operating frequency of the compressor increases to the highest frequency. In this way, the operating frequency of the compressor can be more quickly adjusted to the highest frequency, the refrigerant in the indoor unit can be more quickly flowed into the outdoor unit, the speed of refrigerant recovery of the air conditioner is improved, and the total circuit current exceeding the system maximum limited frequency current caused by the frequency of the compressor being too high can be avoided. The electronic expansion valve is controlled to be fully closed, the compressor, the indoor fan and the outdoor fan are stopped, and the strong electric mechanical switch is powered off, so that the air conditioner is disassembled, and the air conditioner intelligently completes the refrigerant recovery and power-off of the air conditioner, thereby reducing the operation steps of the disassembling worker. Since the strong electric mechanical switch can be controlled to intelligently power on or power off the air conditioner, the safety hazard of the disassembling worker forgetting to power off and disassemble can be avoided, and the disassembling operation is simple, convenient, safe and reliable. In the case that the air conditioner is disassembled and the strong electric mechanical switch is powered on again, the electronic expansion valve is first controlled to be opened, and then the air conditioner is controlled to run in the refrigeration mode, and the operating states of the compressor, the indoor fan and the outdoor fan are controlled according to the discharge temperature of the compressor, which is beneficial to better determining whether the system refrigerant is insufficient, so as to remind the refrigerant to be supplemented and ensure the sufficiency of the refrigerant amount in the system after disassembly.

[0126] In combination Figure 4 As shown in the accompanying drawings, the embodiments of the present disclosure provide another method for disassembling an air conditioner, comprising:

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

[0128] S402, in the case that the difference between the total circuit current and the system maximum limit frequency current meets a first difference condition, the air conditioner controls the compressor to increase the operating frequency at a second frequency increasing rate.

[0129] S403, in the case that the difference between the total circuit current and the system maximum limit frequency current meets a second difference condition, or the operating frequency of the compressor increases to the highest frequency, the air conditioner stops adjusting the operating frequency of the compressor.

[0130] S404, the air conditioner controls the electronic expansion valve to be fully closed, the compressor, the indoor fan and the outdoor fan are stopped, and the strong current mechanical switch is powered off.

[0131] S405, in the case that the air conditioner is assembled and the strong current mechanical switch is powered on again, the air conditioner controls the electronic expansion valve to be fully opened and then closed.

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

[0133] S407, the air conditioner determines whether the system refrigerant quantity is normal or whether the system refrigerant quantity needs to be judged again according to the discharge temperature of the compressor and a first preset system discharge temperature, and the first preset system discharge temperature corresponds to a second frequency value.

[0134] S408, in the case that the system refrigerant quantity is normal, the air conditioner controls the compressor, the indoor fan and the outdoor fan to be fully stopped.

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

[0136] S410, in the case that the system refrigerant quantity needs to be judged again, the air conditioner controls the compressor to increase the frequency to a second frequency value, and determines whether the system refrigerant quantity is normal or short according to the discharge temperature of the compressor and a second preset system discharge temperature, and the second preset system discharge temperature corresponds to a third frequency value.

[0137] S411, the air conditioner controls the operating state of the compressor, the indoor fan and the outdoor fan according to whether the system refrigerant quantity is normal or short to make the system refrigerant sufficient.

[0138] Wherein, the first frequency increasing rate is greater than the second frequency increasing rate.

[0139] The method for disassembling the air conditioner provided by the embodiment of the present disclosure is used in the disassembling process, and the high-pressure valve and the low-pressure valve do not need to be manually operated, and the manual power-off operation is not needed. By setting the 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, the compressor is first frequency-rised at a faster frequency-rising rate, if the difference between the total circuit current and the system maximum limit frequency current meets the first difference condition, the compressor is then frequency-rised at a slower frequency-rising rate, until the difference between the total circuit current and the system maximum limit frequency current meets the second difference condition, or the operating frequency of the compressor is raised to the highest frequency. In this way, the operating frequency of the compressor is more quickly adjusted to the highest frequency, the refrigerant in the indoor unit is more quickly flowed into the outdoor unit, the speed of refrigerant recovery of the air conditioner is improved, and the total circuit current exceeding the system maximum limit frequency current caused by the excessively high frequency of the compressor is avoided. The electronic expansion valve is controlled to be fully closed, the compressor, the indoor fan and the outdoor fan are stopped, the strong electric mechanical switch is powered off, and the air conditioner is disassembled, so that the air conditioner intelligently completes the refrigerant recovery and power-off of the air conditioner, and the operation steps of the disassembling worker are reduced. Since the strong electric mechanical switch can realize the intelligent control of the power-on or power-off of the air conditioner, the safety hazard of forgetting to power off for disassembling by the disassembling worker is avoided, and the disassembling operation is simple, convenient, safe and reliable. In the case that the air conditioner is disassembled and the strong electric mechanical switch is powered on again, the electronic expansion valve is first controlled to be opened, and then the air conditioner is operated in the cooling mode. The compressor, the indoor fan and the outdoor fan are first controlled to be operated, and then whether the refrigerant is normal is judged for the first time according to the discharge temperature of the compressor and the first preset system discharge temperature. If the refrigerant is normal, the compressor, the indoor fan and the outdoor fan are all stopped, the electronic expansion valve is opened, and the disassembling is completed to enter the standby state. If the refrigerant is not normal in the first-time judgment, the compressor is first frequency-rised, and then whether the refrigerant is short is judged for the second time according to the discharge temperature of the compressor and the second preset system discharge temperature corresponding to the frequency after the frequency rising. The operating state of the compressor, the indoor fan and the outdoor fan is controlled according to whether the refrigerant is short. This is favorable for better determining whether the system refrigerant is short, so as to remind the refrigerant to be supplemented and ensure the sufficiency of the refrigerant amount in the system after disassembling.

[0140] In combination Figure 5As shown, the embodiment of the present disclosure provides a device 200 for disassembling an air conditioner, comprising 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 run in a cooling mode and adjust the operating frequency of the compressor to the highest frequency in response to a disassembly instruction. The second control module 502 is configured to control the electronic expansion valve to be fully 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 valve to be fully opened and then closed in the case that the air conditioner is assembled and the high-voltage mechanical switch is re-powered. The fourth control module 504 is configured to control the air conditioner to run in a cooling mode and control the operating states of the compressor, the indoor fan and the outdoor fan according to the discharge temperature of the compressor to make the system refrigerant sufficient.

[0141] The device for disassembling an air conditioner provided by the embodiment of the present disclosure can make the refrigerant in the compressor flow into the outdoor heat exchanger without flowing back to the compressor by setting a one-way valve during the disassembly process, without the need for the disassembly worker to manually operate the high-pressure valve and the low-pressure valve and manually power off. The air conditioner is first controlled to run in a cooling mode, and the frequency of the compressor is adjusted to the highest frequency to make the refrigerant enter the outdoor unit of the air conditioner. The electronic expansion valve is controlled to be fully closed, the compressor, the indoor fan and the outdoor fan are stopped, and the high-voltage mechanical switch is powered off to disassemble the air conditioner, so that the air conditioner intelligently completes the recovery and power-off of the refrigerant of the air conditioner and reduces the operation steps of the disassembly worker. Since the high-voltage mechanical switch can intelligently control the power-on or power-off of the air conditioner, the safety hazard of forgetting to power off for disassembly by the disassembly worker is avoided, and the disassembly operation is simple, convenient, safe and reliable. In the case that the air conditioner is disassembled and the high-voltage mechanical switch is re-powered, the electronic expansion valve is first controlled to be opened, and then the air conditioner is controlled to run in a cooling mode, and the operating states of the compressor, the indoor fan and the outdoor fan are controlled according to the discharge temperature of the compressor, which is beneficial to better determine whether the system refrigerant is insufficient to remind the refrigerant to be supplemented and ensure the sufficiency of the refrigerant amount in the system after disassembly.

[0142] In combination Figure 6 As shown, the embodiment of the present disclosure provides a device 300 for disassembling an air conditioner, comprising a processor 600 and a memory 601. Optionally, the device can further comprise a communication interface 602 and a bus 603. The processor 600, the communication interface 602 and the memory 601 can complete communication with each other through the bus 603. The communication interface 602 can be used for information transmission. The processor 600 can invoke the logical instructions in the memory 601 to execute the method for disassembling an air conditioner of the above-mentioned embodiments.

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

[0144] The memory 601 as a computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments 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, implements the method for disassembling the air conditioner in the above embodiments.

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

[0146] In combination Figure 7 As shown in the above embodiments, the present disclosure provides an air conditioner 100, which comprises: an air conditioner body, and the above-described device 200 (300) for disassembling the air conditioner. The device 200 (300) for disassembling the air conditioner is installed on the air conditioner body. The installation relationship described herein is not limited to being placed in the air conditioner, but also includes installation connection with other components of the air conditioner, including but not limited to physical connection, electrical connection or signal transmission connection, etc. Those skilled in the art can understand that the device 200 (300) for disassembling the air conditioner can be adapted to a feasible air conditioner body, and thus realize other feasible embodiments.

[0147] The present disclosure provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are set to execute the above-described method for disassembling the air conditioner.

[0148] The above-described computer readable storage medium can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0149] The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method disclosed in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes, and can also be a transitory storage medium.

[0150] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural, logical, electrical, process, and other changes. The embodiments represent only a few of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included in or replace parts and features of other embodiments. Also, the words used in this application are used only to describe the embodiments and not to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly requires otherwise, the singular forms "a," "an," and "the" are intended to include the plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listed items. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprises" and the like mean the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, or device including the stated element. In this document, each embodiment focuses on the differences from other embodiments, and the same or similar parts between embodiments can be referred to each other. For the method, product, etc. disclosed in the embodiments, if it corresponds to the method part disclosed in the embodiments, the relevant part can be referred to the description of the method part.

[0151] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods for each specific application to realize the described functions, but such implementation should not be considered beyond the scope of the embodiments of the present disclosure. The skilled person can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0152] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units can only be a logical function division, and actual implementation can have another division manner, for example, a plurality of 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 the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms. The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to implement the embodiments. In addition, each functional unit in the embodiments of the present disclosure can be integrated in one processing unit, or each unit can be a physically independent unit, or two or more units can be integrated in one unit.

[0153] The computer program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other processing device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other processing device to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

Claims

1. A method for disassembly of an air conditioner, characterized by, The air conditioner comprises: a one-way valve arranged at an outlet of the compressor and connected between the outdoor heat exchanger and the four-way valve, so that the refrigerant flowing into the outdoor heat exchanger does not flow back to the compressor; an electronic expansion valve arranged between the indoor heat exchanger and the outdoor heat exchanger; a strong electric mechanical switch for controlling power-on or power-off of the air conditioner according to a signal; the method comprises: in response to a disassembly instruction, controlling the air conditioner to run in a cooling mode, and adjusting the operating frequency of the compressor to the highest frequency; controlling the electronic expansion valve to be fully closed, the compressor, the indoor fan and the outdoor fan to be stopped, and the strong electric mechanical switch to be powered off; after the air conditioner is installed and the strong electric mechanical switch is powered on again, controlling the electronic expansion valve to be fully opened and then closed; controlling the air conditioner to run in the cooling mode, and controlling the operating states of the compressor, the indoor fan and the outdoor fan according to the discharge temperature of the compressor so that the system refrigerant is sufficient.

2. The method of claim 1, wherein, adjusting the operating frequency of the compressor to the highest frequency, comprising: controlling the compressor to increase the operating frequency at a first frequency increasing rate; in a case where the difference between the total circuit current and the system maximum limited frequency current meets a first difference condition, controlling the compressor to increase the operating frequency at a second frequency increasing rate; in a case where the difference between the total circuit current and the system maximum limited frequency current meets a second difference condition, or the operating frequency of the compressor increases to the highest frequency, stopping adjusting the operating frequency of the compressor; wherein the first frequency increasing rate is greater than the second frequency increasing rate.

3. The method of claim 1, wherein, controlling the electronic expansion valve to be fully closed, the compressor, the indoor fan and the outdoor fan to be stopped, and the strong electric mechanical switch to be powered off, comprising: controlling the electronic expansion valve to be opened; in a case where the electronic expansion valve is fully opened, controlling the electronic expansion valve to be closed; in a case where the electronic expansion valve is fully closed, controlling the compressor to run; in a case where the compressor runs for a first time length, controlling the compressor, the indoor fan and the outdoor fan to be stopped, and controlling the strong electric mechanical switch to be powered off.

4. The method of claim 1, wherein, controlling the electronic expansion valve to be fully opened and then closed, comprising: controlling the electronic expansion valve to be opened; in a case where the electronic expansion valve is fully opened, controlling the electronic expansion valve to be closed.

5. The method of claim 1, wherein, controlling the operating states of the compressor, the indoor fan and the outdoor fan according to the discharge temperature of the compressor so that the system refrigerant is sufficient, comprising: controlling the compressor, the indoor fan and the outdoor fan to run; determining whether the system refrigerant amount is normal or needs to be judged again according to the discharge temperature of the compressor and a first preset system discharge temperature, the first preset system discharge temperature corresponding to a second frequency value; in a case where the system refrigerant amount is normal, controlling the compressor, the indoor fan and the outdoor fan to be fully stopped, and controlling the electronic expansion valve to be opened to complete disassembly and enter a standby state; in a case where the system refrigerant amount needs to be judged again, controlling the compressor to increase the frequency to the second frequency value, and determining whether the system refrigerant amount is normal or short according to the discharge temperature of the compressor and a second preset system discharge temperature, the second preset system discharge temperature corresponding to a third frequency value; and controlling the operating states of the compressor, the indoor fan and the outdoor fan according to whether the system refrigerant amount is normal or short so that the system refrigerant is sufficient.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises, after controlling the air conditioner to run in the cooling mode and before adjusting the operating frequency of the compressor to the highest frequency: controlling the indoor fan and the outdoor fan to run at a high wind speed.

7. An apparatus for disassembly of an air conditioner, comprising: The air conditioner comprises: a one-way valve arranged at an outlet of the compressor and connected between the outdoor heat exchanger and the four-way valve, so that the refrigerant flowing into the outdoor unit does not flow back to the compressor; an electronic expansion valve; a strong electric mechanical switch for controlling power-on or power-off of the air conditioner according to a signal; The device comprises: a first control module configured to control the air conditioner to run in the cooling mode and adjust the operating frequency of the compressor to the highest frequency in response to a disassembly instruction; a second control module configured to control the electronic expansion valve to be fully closed, the compressor, the indoor fan, and the outdoor fan to be powered off, and the strong electric mechanical switch to be powered off; a third control module configured to control the electronic expansion valve to be fully opened and then closed in a case where the air conditioner is disassembled and the strong electric mechanical switch is powered on again; a fourth control module configured to control the air conditioner to run in the cooling mode and control the operating states of the compressor, the indoor fan, and the outdoor fan according to the discharge temperature of the compressor to ensure sufficient system refrigerant.

8. An apparatus for disassembly of an air conditioner, comprising a processor and a memory having stored therein program instructions, wherein, The processor is configured to execute the method for disassembling the air conditioner according to any one of claims 1 to 6 when the program instructions are executed.

9. An air conditioner characterized by comprising: The device comprises: an air conditioner body comprising: a one-way valve arranged at an outlet of the compressor and connected between the outdoor heat exchanger and the four-way valve, so that the refrigerant 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; and a strong electric mechanical switch for controlling power-on or power-off of the air conditioner according to a signal; The device for disassembling the air conditioner according to claim 7 or 8 is installed in the air conditioner body.

10. A storage medium storing program instructions, characterized in that, The program instructions are executed to perform the method for disassembling the air conditioner according to any one of claims 1 to 6.

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