Standby control method and operation control device of air conditioner and air conditioner

Abstract

The invention discloses a standby control method and an operation control device of an air conditioner and the air conditioner, and relates to the technical field of air conditioners. The air conditioner comprises a compressor, an auxiliary electric heater used for heating the compressor, a main control board arranged in an electric control box and a refrigerant heat exchange pipeline used for conducting heat exchange on the main control board; the method comprises the steps that when the air conditioner is in a standby state, the temperature of the environment where the air conditioner is located is continuously obtained; when the environment temperature is smaller than a first preset temperature, a compressor and an auxiliary electric heater are controlled according to a temperature interval where the environment temperature falls, so that the internal temperature of the electric control box is larger than the first preset temperature; wherein the first preset temperature is higher than the second preset temperature, the auxiliary electric heater can be started under the condition that the temperature is lower than the second preset temperature, and it can be guaranteed that the air conditioner is in a normal standby state at the low temperature, so that the air conditioner is normally started when needing to be started.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular, to a standby control method, an operation control device, an air conditioner, and a computer-readable storage medium for an air conditioner. Background Art

[0002] Currently, in the field of household air conditioner products, the minimum start-up temperature, that is, the operating temperature, of a large number of existing household air conditioner products is labeled as -25°C. When it is required to apply such air conditioner products to scenarios with lower ambient temperatures, only some components of such air conditioner products can work at this temperature. For example, the main control MCU module and the compressor drive module, but the minimum operating temperature of some components can only be above -25°C, such as the fan module, electrolytic capacitors, etc., which makes the air conditioner in an abnormal standby state. When the user wants to start the air conditioner, it cannot be turned on, bringing great inconvenience and a bad user experience to the user. Summary of the Invention

[0003] An object of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a standby control method, an operation control device, an air conditioner, and a computer-readable storage medium for an air conditioner, which can ensure that the air conditioner is in a normal standby state at a lower temperature, so that the air conditioner can be normally turned on when it is required to be turned on.

[0004] In a first aspect, an embodiment of the present invention provides a standby control method for an air conditioner. The air conditioner includes a compressor, an auxiliary electric heater for heating the compressor, a main control board disposed inside an electric control box, and a refrigerant heat exchange pipeline for exchanging heat for the main control board. The method includes:

[0005] When the air conditioner is in a standby state, continuously obtain the ambient temperature of the air conditioner;

[0006] When the ambient temperature is less than a first preset temperature, control the compressor and the auxiliary electric heater according to the temperature range in which the ambient temperature falls, so that the internal temperature of the electric control box is greater than a second preset temperature;

[0007] Wherein, the first preset temperature is greater than the second preset temperature, and the auxiliary electric heater can be turned on when the temperature is lower than the second preset temperature.

[0008] The standby control method of the air conditioner provided by the embodiment of the present invention has at least the following beneficial effects: after the air conditioner enters the standby state, the internal temperature of the electronic control box will gradually tend to be the same as the ambient temperature. When the air conditioner is used in a scenario with a relatively low ambient temperature, it may cause the internal temperature of the electronic control box in the standby state to be lower than its minimum starting temperature, resulting in the air conditioner being unable to start normally. Therefore, the air conditioner continuously obtains the ambient temperature of the air conditioner in the standby state, and starts to control the operation of the compressor and the auxiliary electric heater when the ambient temperature is less than the first preset temperature, so as to keep the internal temperature of the electronic control box greater than the second preset temperature, avoiding the internal temperature of the electronic control box being lower than its minimum starting temperature and causing the air conditioner to be unable to start normally, where the first preset temperature is greater than the second preset temperature, that is, measures are taken before the ambient temperature drops to the second preset temperature, avoiding the internal temperature of the electronic control box being unable to be kept greater than the second preset temperature due to the lag of heat conduction when the compressor and the auxiliary electric heater start to work, improving the reliability of the air conditioner to remain in the normal standby state in the use scenario of a relatively low ambient temperature, so that the air conditioner can be normally turned on when it needs to be turned on.

[0009] According to the standby control method of the air conditioner provided by some embodiments of the present invention, controlling the compressor and the auxiliary electric heater according to the temperature range in which the ambient temperature falls includes:

[0010] When the ambient temperature falls into the temperature range greater than the second preset temperature and less than the first preset temperature, control the compressor to start and run at the lowest operating frequency every first preset time period;

[0011] When the ambient temperature falls into the temperature range less than the second preset temperature, control the auxiliary electric heater to turn on, and when the exhaust temperature of the compressor is greater than the second preset temperature, control the compressor to start and run at the lowest operating frequency.

[0012] According to the standby control method of the air conditioner provided by some embodiments of the present invention, after the compressor is turned on, adjust the operating frequency of the compressor according to the exhaust temperature of the compressor.

[0013] According to the standby control method of the air conditioner provided by some embodiments of the present invention, when the exhaust temperature of the compressor is lower than the third preset temperature, increase the operating frequency of the compressor.

[0014] According to the standby control method of the air conditioner provided by some embodiments of the present invention, after the compressor is turned on, adjust the refrigerant opening degree of the refrigerant heat exchange pipeline according to the internal temperature of the electronic control box.

[0015] According to the standby control method of an air conditioner provided by some embodiments of the present invention, the greater the difference between the internal temperature of the electronic control box and the first preset temperature, the greater the refrigerant opening degree of the refrigerant heat exchange pipeline.

[0016] According to the standby control method of an air conditioner provided by some embodiments of the present invention, after the compressor is turned on, control the auxiliary electric heater to stop running.

[0017] According to the standby control method of an air conditioner provided by some embodiments of the present invention, when the ambient temperature is less than the second preset temperature, and when the duration for which the internal temperature of the electronic control box is greater than the first preset temperature reaches the second preset duration, control the compressor to shut down.

[0018] According to the standby control method of an air conditioner provided by some embodiments of the present invention, the internal temperature of the electronic control box is measured by any one of the following:

[0019] The temperature measurement module of the main control board;

[0020] The first sensor provided inside the electronic control box;

[0021] The second sensor provided in the refrigerant heat exchange pipeline.

[0022] In a second aspect, an embodiment of the present invention provides an operation control device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor executes the program to implement the standby control method according to any one of the first aspects.

[0023] According to the operation control device provided by the embodiment of the present invention, it has at least the following beneficial effects: After the air conditioner enters the standby state, the internal temperature of the electronic control box will gradually tend to be the same as the ambient temperature. When the air conditioner is used in a scenario with a lower ambient temperature, it may cause the internal temperature of the electronic control box in the standby state to be lower than its minimum startup temperature, resulting in the air conditioner being unable to start normally. Therefore, the air conditioner continuously obtains the ambient temperature of the air conditioner in the standby state, and starts to control the operation of the compressor and the auxiliary electric heater when the ambient temperature is less than the first preset temperature, so as to keep the internal temperature of the electronic control box greater than the second preset temperature, and avoid the internal temperature of the electronic control box being lower than its minimum startup temperature, resulting in the air conditioner being unable to start normally. The first preset temperature is greater than the second preset temperature, that is, measures are taken before the ambient temperature drops to the second preset temperature, to avoid the internal temperature of the electronic control box being unable to remain greater than the second preset temperature due to the lag of heat conduction when the compressor and the auxiliary electric heater start to work, improving the reliability of the air conditioner to remain in the normal standby state in the use scenario of a lower ambient temperature, so that the air conditioner can be normally turned on when it is needed to be turned on.

[0024] In a third aspect, an embodiment of the present invention provides an air conditioner, which includes the operation control device described in the second aspect.

[0025] The air conditioner provided by the embodiment of the present invention has at least the following beneficial effects: After the air conditioner enters the standby state, the internal temperature of the electronic control box will gradually tend to be the same as the ambient temperature. When the air conditioner is used in a scenario with a relatively low ambient temperature, it may cause the internal temperature of the electronic control box in the standby state to be lower than its minimum startup temperature, resulting in the air conditioner being unable to start normally. Therefore, the air conditioner continuously obtains the ambient temperature of the air conditioner in the standby state, and starts to control the operation of the compressor and the auxiliary electric heater when the ambient temperature is less than the first preset temperature, so as to keep the internal temperature of the electronic control box greater than the second preset temperature, and avoid the internal temperature of the electronic control box being lower than its minimum startup temperature, resulting in the air conditioner being unable to start normally. The first preset temperature is greater than the second preset temperature, that is, measures are taken before the ambient temperature drops to the second preset temperature, so as to avoid the internal temperature of the electronic control box being unable to be kept greater than the second preset temperature due to the lag of heat conduction when the compressor and the auxiliary electric heater start to work, and improve the reliability of the air conditioner to maintain a normal standby state in a scenario with a relatively low ambient temperature, so that the air conditioner can be normally started when it needs to be turned on.

[0026] In a fourth aspect, a computer-readable storage medium provided by an embodiment of the present invention stores computer-executable instructions for causing a computer to execute the standby control method of the air conditioner as described in the first aspect.

[0027] The computer-readable storage medium provided by the embodiment of the present invention has at least the following beneficial effects: After the air conditioner enters the standby state, the internal temperature of the electronic control box will gradually tend to be the same as the ambient temperature. When the air conditioner is used in a scenario with a relatively low ambient temperature, it may cause the internal temperature of the electronic control box in the standby state to be lower than its minimum startup temperature, resulting in the air conditioner being unable to start normally. Therefore, the air conditioner continuously obtains the ambient temperature of the air conditioner in the standby state, and starts to control the operation of the compressor and the auxiliary electric heater when the ambient temperature is less than the first preset temperature, so as to keep the internal temperature of the electronic control box greater than the second preset temperature, and avoid the internal temperature of the electronic control box being lower than its minimum startup temperature, resulting in the air conditioner being unable to start normally. The first preset temperature is greater than the second preset temperature, that is, measures are taken before the ambient temperature drops to the second preset temperature, so as to avoid the internal temperature of the electronic control box being unable to be kept greater than the second preset temperature due to the lag of heat conduction when the compressor and the auxiliary electric heater start to work, and improve the reliability of the air conditioner to maintain a normal standby state in a scenario with a relatively low ambient temperature, so that the air conditioner can be normally started when it needs to be turned on.

[0028] Other features and advantages of the present invention will be described in the following specification, and partly will become obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the specification, claims and drawings. Description of the Drawings

[0029] The drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solutions of the present invention, and do not constitute a limitation to the technical solutions of the present invention.

[0030] The present invention will be further described below in conjunction with the drawings and embodiments;

[0031] Figure 1 is a schematic structural diagram of an air conditioner provided by an embodiment of the present invention;

[0032] Figure 2 is a flowchart of a standby control method for an air conditioner provided by an embodiment of the present invention;

[0033] Figure 3 is a flowchart of another standby control method for an air conditioner provided by an embodiment of the present invention;

[0034] Figure 4 is a flowchart of another standby control method for an air conditioner provided by an embodiment of the present invention.

[0035] Figure 5 is a flowchart of another standby control method for an air conditioner provided by an embodiment of the present invention;

[0036] Figure 6 is a schematic structural diagram of an operation control device provided by an embodiment of the present invention.

[0037] Reference numerals: compressor - 1; exhaust port - 1.1; auxiliary electric heater - 2; main control board - 3; fan module - 3.1; compressor drive module - 3.2; refrigerant heat exchange pipeline - 4; turning position - 4.1; ambient temperature detection point - 5; operation control device - 500; processor - 510; memory - 520. Detailed Embodiments

[0038] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation to the protection scope of the present invention.

[0039] In the description of the embodiments of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", and "exceeding" do not include the present number, while understandings such as "above", "below", and "within" include the present number. "At least one" means one or more, and "at least one of the following" and its similar expressions refer to any combination of these items, including any combination of single items or plural items. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0040] It should be noted that words such as "set", "installed", and "connected" in the embodiments of the present invention should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the embodiments of the present invention in combination with the specific content of the technical solution. For example, the term "connected" can be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium.

[0041] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] Currently, in the field of household air conditioner products, the minimum start-up temperature, that is, the operating temperature, of a large number of existing household air conditioner products is marked as -25°C. When it is required to apply such air conditioner products to scenarios with lower ambient temperatures, only some components of such air conditioner products can work at this temperature. For example, the main control MCU module and the compressor drive module, but the minimum operating temperature of some components can only be above -25°C. For example, the fan module, electrolytic capacitors, etc., making the air conditioner in an abnormal standby state. When the user wants to start the air conditioner, it cannot be turned on, bringing great inconvenience and a bad user experience to the user.

[0043] Based on this, the embodiments of the present invention provide a standby control method, an operation control device, an air conditioner, and a computer-readable storage medium for an air conditioner, which can ensure that the air conditioner is in a normal standby state at a lower temperature, so that the air conditioner can be normally turned on when it is needed to be turned on.

[0044] The following further elaborates on the embodiments of the present invention in conjunction with the accompanying drawings.

[0045] Refer to Figure 1 , Figure 1It is a schematic structural diagram of an air conditioner provided by an embodiment of the present invention. The air conditioner includes a compressor 1, an auxiliary electric heater 2 for heating the compressor 1, a main control board 3 disposed inside an electric control box, a refrigerant heat exchange pipe 4 for heat exchange of the main control board 3, and an ambient temperature detection point 5. Among them, the main control board 3 includes a fan module 3.1 and a compressor drive module 3.2. The compressor 1 is located at the bottom of the air conditioner. The auxiliary electric heater 2 is installed on the outer shell of the compressor 1. When the main control board 3 is installed in the whole machine, the fan module 3.1 is located above the compressor 1, and the fan module 3.1 shares the refrigerant heat exchange pipe 4 with the compressor 1.

[0046] Refer to Figure 2 , Figure 2 is a flowchart of a standby control method for an air conditioner provided by an embodiment of the present invention. The method includes but is not limited to steps S110 to step S120:

[0047] Step S100: When the air conditioner is in the standby state, continuously obtain the ambient temperature of the air conditioner.

[0048] It should be noted that when the air conditioner is in the standby state, the internal temperature of the electric control box will gradually tend to be the same as the ambient temperature. If the ambient temperature is lower than the minimum operating temperature of some components of the air conditioner, it is easy to cause the air conditioner to fail to start normally when it needs to be turned on. By continuously obtaining the ambient temperature of the air conditioner and detecting the change of the ambient temperature, corresponding measures can be taken in time to solve the problem of abnormal standby of the air conditioner. Preferably, the ambient temperature detection point 5 is set at the air intake position on the rear side of the air conditioner body.

[0049] Step S200: When the ambient temperature is less than the first preset temperature, control the compressor 1 and the auxiliary electric heater 2 according to the temperature range in which the ambient temperature falls, so that the internal temperature of the electric control box is greater than the second preset temperature.

[0050] Preferably, the first preset temperature is -20°C, and the first preset temperature can be appropriately adjusted within the range of -20°C to -25°C. Preferably, the second preset temperature is -25°C, and the second preset temperature can be appropriately adjusted within the range of -25°C to -40°C.

[0051] It can be understood that when the internal temperature of the electric control box is higher than the second preset temperature, that is, -25°C, components such as the fan module 3.1 and electrolytic capacitors on the main control board 3 with the lowest operating temperature of the second preset temperature can work normally, and the air conditioner can be turned on normally when it needs to be turned on. When the ambient temperature is less than the second preset temperature, the air conditioner is in an abnormal standby state and cannot be turned on.

[0052] It should be noted that when the internal temperature of the electronic control box is lower than the second preset temperature, i.e., -25°C, the compressor drive module 3.2 with a minimum operating temperature of -40°C on the main control board 3 may be able to operate normally. However, when the ambient temperature continues to drop below -40°C, the drive module 3.2 of the compressor cannot drive the compressor 1 to operate normally.

[0053] Furthermore, although the air conditioner is in a normal standby state when the ambient temperature falls within the temperature range greater than the second preset temperature and less than the first preset temperature, in order to prevent the ambient temperature from possibly continuing to drop to the second preset temperature, resulting in the air conditioner being unable to start normally, it is necessary to continuously obtain the ambient temperature of the air conditioner in the standby state. When it is detected that the ambient temperature is less than the first preset temperature, the compressor 1 is turned on, that is, measures are taken before the ambient temperature drops to the second preset temperature. By starting the compressor 1, the internal temperature of the electronic control box is increased, so that the internal temperature of the electronic control box remains greater than the second preset temperature.

[0054] Furthermore, when the ambient temperature is lower than the second preset temperature, the air conditioner cannot start normally. It is necessary to turn on the auxiliary electric heater 2 to assist the compressor 1 to start, ensuring that the internal temperature of the compressor 1 is raised above the second preset temperature, so that the compressor 1 can start normally when the ambient temperature is lower than the second preset temperature, and further ensuring that the internal temperature of the electronic control box remains greater than the second preset temperature.

[0055] It can be understood that by controlling the compressor 1 and the auxiliary electric heater 2, the internal temperature of the electronic control box can be kept greater than the second preset temperature, enabling the air conditioner to start normally when it is required to be turned on.

[0056] It should be noted that the first preset temperature is greater than the second preset temperature.

[0057] According to the standby control method of the air conditioner provided by the embodiment of the present invention, after the air conditioner enters the standby state, the internal temperature of the electronic control box will gradually tend to be consistent with the ambient temperature. When the air conditioner is used in a scenario with a relatively low ambient temperature, it may cause the internal temperature of the electronic control box in the standby state to be lower than its minimum starting temperature, resulting in the air conditioner being unable to start normally. Therefore, the air conditioner continuously obtains the ambient temperature of the air conditioner in the standby state, and starts to control the operation of the compressor 1 and the auxiliary electric heater 2 when the ambient temperature is less than the first preset temperature, so as to keep the internal temperature of the electronic control box greater than the second preset temperature, and avoid the internal temperature of the electronic control box being lower than its minimum starting temperature, resulting in the air conditioner being unable to start normally. Wherein, the first preset temperature is greater than the second preset temperature, that is, measures are taken before the ambient temperature drops to the second preset temperature, so as to avoid the internal temperature of the electronic control box being unable to be kept greater than the second preset temperature due to the lag of heat conduction when the compressor 1 and the auxiliary electric heater 2 start to work, improve the reliability of the air conditioner to remain in the normal standby state in the use scenario with a relatively low ambient temperature, and enable the air conditioner to be normally turned on when it is required to be turned on.

[0058] Refer to Figure 3 , Figure 3 FIG. is a flowchart of another standby control method of the air conditioner provided by the embodiment of the present invention. According to the standby control method of the air conditioner provided by some embodiments of the present invention, the compressor 1 and the auxiliary electric heater 2 are controlled according to the temperature range in which the ambient temperature falls, including but not limited to steps S210 - S220:

[0059] Step S210: When the ambient temperature falls within the temperature range greater than the second preset temperature and less than the first preset temperature, control the compressor 1 to start running at the lowest operating frequency every first preset time period;

[0060] Preferably, the first preset temperature is -20°C, and the second preset temperature is -25°C. When it is detected that the ambient temperature falls within the temperature range of -25°C to -20°C, the minimum startup temperature of the fan module 3.1 is the second preset temperature, and the minimum operating temperature of the compressor drive module 3.2 is -40°C. At this time, the ambient temperature is higher than the second preset temperature but lower than the first preset temperature. Therefore, devices such as the fan module 3.1, electrolytic capacitors, and the drive module 3.2 of the compressor on the main control board 3 inside the electric control box can all start normally. However, to prevent the devices such as the fan module 3.1 and electrolytic capacitors in the air conditioner from being unable to start normally due to the possible continuous drop of the ambient temperature below the second preset temperature, measures need to be taken before it drops to the second preset temperature. That is, by controlling the compressor 1 to start and operate at the lowest operating frequency every first preset duration, the internal temperature of the electric control box is maintained greater than the second preset temperature, that is, the temperature at the location where the fan module 3.1, electrolytic capacitors, etc. are located is higher than the second preset temperature, so that the air conditioner can be normally turned on when it needs to be turned on. Preferably, the first preset duration is 10 min, and the first preset duration can be appropriately adjusted within the value range of 10 - 30 min.

[0061] It should be noted that at lower temperatures, the lubricating oil of the compressor 1 may become viscous, resulting in the compressor 1 being stuck or damaged.

[0062] It can be understood that if the compressor 1 is controlled to operate at a high frequency, since the lubricating oil of the compressor 1 is viscous, it may cause wear of the internal parts of the compressor 1, thereby shortening the service life of the compressor 1. In addition, at lower temperatures, the compressor 1 has to bear a greater load to maintain the operation of the air conditioner. If it operates at a high frequency, it may cause the compressor 1 to be overloaded, thereby damaging the compressor 1.

[0063] It can be understood that in an environment with a lower temperature, controlling the compressor 1 to start and operate at the lowest operating frequency can protect the safety of the compressor 1 itself and the stable operation of the air conditioner.

[0064] It should be noted that when it is detected that the temperature inside the electric control box is greater than the first preset temperature, turning off the operation of the compressor 1 can reduce the heat exchange efficiency between the internal temperature of the electric control box and the ambient temperature, and avoid the internal temperature of the electric control box rapidly approaching the ambient temperature due to the ambient temperature dropping below the second preset temperature, resulting in the air conditioner being unable to be turned on.

[0065] Step S220: When the ambient temperature falls within the temperature range less than the second preset temperature, control the auxiliary electric heater 2 to turn on, and when the exhaust temperature of the compressor 1 is greater than the second preset temperature, control the compressor 1 to start and operate at the lowest operating frequency.

[0066] Preferably, the second preset temperature is -25°C. When the ambient temperature is lower than -25°C, it is lower than the minimum startup temperature of some components on the main control board 3. When the air conditioner needs to be used, it cannot be turned on normally. Measures need to be taken in time to raise the temperature inside the electric control box above the second preset temperature. The auxiliary electric heater 2 is arranged on the compressor 1, and the auxiliary electric heater 2 is started to work. By means of the heat transferred by the auxiliary electric heater 2, the internal temperature of the compressor 1 is raised above the second preset temperature, so that the compressor 1 can maintain operation at an ambient temperature lower than -25°C, and then the temperature inside the electric control box is kept greater than the second preset temperature.

[0067] It should be noted that if the auxiliary electric heater 2 is turned on after the ambient temperature drops to the minimum startup temperature of the compressor 1, it may be impossible to keep the temperature inside the electric control box greater than the second preset temperature due to the lag of heat conduction when the auxiliary electric heater 2 starts to work. Therefore, when it is detected that the ambient temperature is lower than the second preset temperature, the auxiliary electric heater 2 is started.

[0068] It should be noted that before the compressor 1 is started and running, the exhaust temperature of the compressor 1 is the same as the ambient temperature. Since the internal temperature of the compressor 1 is raised above the second preset temperature by means of the heat transferred by the auxiliary electric heater 2, the exhaust temperature of the compressor 1 increases as the internal temperature of the compressor 1 increases.

[0069] It should be noted that a temperature sensor is arranged at the exhaust port 1.1 of the compressor 1 to detect the temperature at the exhaust port 1.1 of the compressor 1. When it is detected that the exhaust temperature of the compressor 1 is greater than the second preset temperature, it indicates that the heat transferred by the auxiliary electric heater 2 has raised the internal temperature of the compressor 1 above the second preset temperature, and the compressor 1 can be started to run at the lowest operating frequency, ensuring the operating safety and stability of the compressor 1.

[0070] According to the standby control method of the air conditioner provided by some embodiments of the present invention, after the compressor 1 is started, the operating frequency of the compressor 1 is adjusted according to the exhaust temperature of the compressor 1.

[0071] It can be understood that with the start of the compressor 1, the internal temperature of the compressor 1 rises, and the lubricating oil tends to be in a normal liquid state, and can gradually adapt to higher frequency operation.

[0072] According to the standby control method of the air conditioner provided by some embodiments of the present invention, when the exhaust temperature of the compressor 1 is lower than the third preset temperature, the operating frequency of the compressor 1 is increased. Preferably, the operating frequency of the compressor 1 can be increased by 30 Hz.

[0073] It can be understood that by increasing the operating frequency of the compressor 1, the exhaust temperature of the compressor 1 can be rapidly increased. Preferably, the third preset temperature is 50°C, and the third preset temperature can be moderately adjusted within the range of 40°C to 60°C.

[0074] According to the standby control method of the air conditioner provided by some embodiments of the present invention, after the compressor 1 is started, the refrigerant opening of the refrigerant heat exchange pipe 4 is adjusted according to the internal temperature of the electric control box.

[0075] Refer to Figure 1 , the fan module 3.1 is located above the compressor 1, and the fan module 3.1 shares the same refrigerant heat exchange pipe 4 with the compressor 1.

[0076] It should be noted that as the compressor 1 is started, the exhaust temperature of the compressor 1 rises, and the heat is transferred to the inside of the refrigerant heat exchange pipe 4, and this part of the heat is further transferred to the inside of the electric control box along the refrigerant heat pipe.

[0077] It can be understood that by adjusting the refrigerant opening of the refrigerant heat exchange pipe 4, the internal temperature of the electric control box can be increased more quickly.

[0078] According to the standby control method of the air conditioner provided by some embodiments of the present invention, the greater the difference between the internal temperature of the electric control box and the first preset temperature, the greater the refrigerant opening of the refrigerant heat exchange pipe 4.

[0079] It can be understood that by increasing the refrigerant opening of the refrigerant heat exchange pipe 4, more heat can be transferred from the refrigerant pipe to the inside of the electric control box, the internal temperature of the electric control box can be increased more quickly, and the difference from the second preset temperature can be rapidly reduced.

[0080] According to the standby control method of the air conditioner provided by some embodiments of the present invention, after the compressor 1 is started, the auxiliary electric heater 2 is controlled to stop operating.

[0081] It can be understood that after the compressor 1 starts for a period of time, the internal temperature of the compressor 1 can be rapidly increased, so that the internal temperature of the compressor 1 can be maintained higher than the second preset temperature and keep normal operation. At this time, the auxiliary electric heater 2 can be turned off to save energy consumption.

[0082] According to the standby control method of the air conditioner provided by some embodiments of the present invention, when the ambient temperature is less than the second preset temperature, when the duration for which the internal temperature of the electric control box is greater than the first preset temperature reaches the second preset duration, the compressor 1 is controlled to stop.

[0083] It should be noted that when the ambient temperature is less than the second preset temperature, if the compressor 1 is controlled to stop when the duration for which the internal temperature of the electric control box is greater than the second preset temperature is short, it is easy for the internal temperature of the electric control box to rapidly decrease to approach the ambient temperature, that is, less than the second preset temperature.

[0084] It can be understood that when the internal temperature of the electronic control box is greater than the first preset temperature and the duration of being greater than the first preset temperature reaches the second preset duration, the compressor 1 is controlled to stop, which can further increase the internal temperature of the electronic control box, reduce the heat exchange efficiency between the internal temperature of the electronic control box and the ambient temperature, and can keep some components inside the electronic control box starting normally for a long time after the compressor 1 stops in a relatively low-temperature environment. Preferably, the second preset duration is 30 min, and the second preset duration can be appropriately adjusted within the range of 30 min to 50 min.

[0085] It can be understood that controlling the compressor 1 to stop is beneficial to energy conservation.

[0086] According to the standby control method of the air conditioner provided by some embodiments of the present invention, the internal temperature of the electronic control box is measured by any one of the following:

[0087] The temperature measurement module of the main control board 3;

[0088] The first sensor arranged inside the electronic control box;

[0089] The second sensor arranged in the refrigerant heat exchange pipeline 4.

[0090] It should be noted that the second sensor arranged in the refrigerant heat exchange pipeline 4 can be located at the turning position 4.1 of the refrigerant heat exchange pipeline 4 close to the electronic control board inside the electronic control box.

[0091] Next, in order to more clearly illustrate the standby control method of the air conditioner of the present invention, two specific embodiments will be introduced in a comprehensive and detailed manner.

[0092] The first embodiment, referring to Figure 4 , Figure 4 is the flowchart of another standby control method of the air conditioner provided by the embodiment of the present invention.

[0093] Step S310: When the air conditioner is in the standby state, continuously obtain the ambient temperature of the air conditioner;

[0094] Step S320: When the ambient temperature falls within the temperature range greater than the second preset temperature and less than the first preset temperature, control the compressor 1 to start running at the lowest operating frequency every first preset duration;

[0095] Preferably, the second preset temperature is -25 °C, the first preset temperature is -20 °C, and the first preset duration is 10 min. When the ambient temperature is within the range of -25 °C to 20 °C, control the compressor 1 to start running at the lowest operating frequency every 10 min.

[0096] It is understandable that as the compressor 1 operates, the exhaust temperature of the compressor 1 gradually increases.

[0097] Step S330: When the exhaust temperature of the compressor 1 is lower than the third preset temperature, increase the operating frequency of the compressor 1;

[0098] Preferably, the third preset temperature is 50°C. When the exhaust temperature of the compressor 1 is lower than 50°C, increase the operating frequency of the compressor 1. When the compressor 1 operates at a frequency of 30 Hz, the exhaust temperature of the compressor 1 can be quickly increased to 50°C.

[0099] Step S340: Adjust the refrigerant opening degree of the refrigerant heat exchange pipeline 4 according to the internal temperature of the electric control box;

[0100] It should be noted that the greater the difference between the internal temperature of the electric control box and the first preset temperature, i.e., -20°C, the greater the refrigerant opening degree of the refrigerant heat exchange pipeline 4.

[0101] Step S350: When the internal temperature of the electric control box is greater than the first preset temperature, control the compressor 1 to stop.

[0102] It is understandable that since the compressor 1 is controlled to start and operate at the lowest operating rate every 10 minutes, and at this time the difference between the ambient temperature and the second preset temperature is not very large. When the internal temperature of the electric control box is greater than the first preset temperature, control the compressor 1 to stop. The heat exchange efficiency between the internal temperature of the electric control box and the ambient temperature is relatively low, and the normal start of the electric control box can still be maintained. Controlling the compressor 1 to stop is beneficial to reducing energy consumption.

[0103] The second embodiment, refer to Figure 5 , Figure 5 is a flowchart of another standby control method for an air conditioner provided by an embodiment of the present invention.

[0104] Step S410: When the air conditioner is in the standby state, continuously obtain the ambient temperature of the air conditioner;

[0105] Step S420: When the ambient temperature falls into the temperature range less than the second preset temperature, control the auxiliary electric heater 2 to turn on, and when the exhaust temperature of the compressor 1 is greater than the second preset temperature, control the compressor 1 to start and operate at the lowest operating frequency;

[0106] Preferably, the second preset temperature is -25°C. When the ambient temperature is below -25°C, control the auxiliary electric heater 2 to turn on to increase the exhaust temperature of the compressor 1, and when the exhaust temperature of the compressor 1 is greater than -25°C, control the compressor 1 to start and operate at the lowest operating frequency.

[0107] Step S430: After the compressor 1 is turned on, control the auxiliary electric heater 2 to stop running;

[0108] Step S440: When the exhaust temperature of the compressor 1 is lower than the third preset temperature, increase the operating frequency of the compressor 1;

[0109] Preferably, the third preset temperature is 50°C. When the exhaust temperature of the compressor 1 is lower than 50°C, increase the operating frequency of the compressor 1. When the compressor 1 operates at a frequency of 30 Hz, the exhaust temperature of the compressor 1 can be quickly increased to 50°C.

[0110] Step S450: Adjust the refrigerant opening degree of the refrigerant heat exchange pipe 4 according to the internal temperature of the electronic control box;

[0111] It should be noted that the greater the difference between the internal temperature of the electronic control box and the first preset temperature, i.e., -20°C, the greater the refrigerant opening degree of the refrigerant heat exchange pipe 4.

[0112] Step S460: When the duration for which the internal temperature of the electronic control box is greater than the first preset temperature reaches the second preset duration, control the compressor 1 to stop.

[0113] Preferably, the second preset duration is 30 min. When the duration for which the internal temperature of the electronic control box is greater than -20°C reaches 30 min, control the compressor 1 to stop.

[0114] In addition, referring to Figure 6 , Figure 6 the structural schematic diagram of the operation control device provided by the embodiment of the present invention, the second aspect of the embodiment of the present invention provides an operation control device 500, including a memory 520, a processor 510, and a computer program stored on the memory 520 and executable on the processor 510. The processor 510 executes the program to implement the standby control method of the air conditioner in the first aspect embodiment as above. For example, execute Figure 2 the method steps S100 to S200 in Figure 3 the method steps S100, S210, S220 in Figure 4 the method steps S310 to S350 in Figure 5 the method steps S410 to S460 in

[0115] In addition, the third aspect of the embodiment of the present invention provides an air conditioner, including the operation control device 500 in the second aspect embodiment as above.

[0116] In addition, the fourth aspect of the embodiment of the present invention provides a computer-readable storage medium. The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer execute the standby control method of the air conditioner in the first aspect embodiment as above. For example, execute Figure 2 the method steps S100 to S200 in Figure 3Method steps S100, step S210, step S220, Figure 4 method steps S310 to S350 in, Figure 5 method steps S410 to S460 in.

[0117] Those of ordinary skill in the art can understand that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or can be implemented as hardware, or can be implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium or a non-transitory medium and a communication medium or a transitory medium. As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory, or other memory technologies, CD-ROM, digital versatile disk (DVD), or other optical disk storage, magnetic cassettes, tapes, magnetic disk storage, or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0118] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A standby control method for an air conditioner, characterized in that, the air conditioner includes a compressor, an auxiliary electric heater for heating the compressor, a main control board disposed inside an electric control box, and a refrigerant heat exchange pipe for heat exchange of the main control board, and the method includes: When the air conditioner is in a standby state, continuously obtain the ambient temperature of the air conditioner; When the ambient temperature is less than a first preset temperature, control the compressor and the auxiliary electric heater according to the temperature range in which the ambient temperature falls, so that the internal temperature of the electric control box remains greater than the second preset temperature; wherein, the first preset temperature is greater than the second preset temperature, and the auxiliary electric heater can be turned on when the temperature is lower than the second preset temperature.

2. The standby control method according to claim 1, characterized in that, the controlling the compressor and the auxiliary electric heater according to the temperature range in which the ambient temperature falls includes: When the ambient temperature falls within a temperature range greater than the second preset temperature and less than the first preset temperature, control the compressor to start and run at the lowest operating frequency every first preset time period; When the ambient temperature falls within a temperature range less than the second preset temperature, control the auxiliary electric heater to turn on, and when the exhaust temperature of the compressor is greater than the second preset temperature, control the compressor to start and run at the lowest operating frequency.

3. The standby control method according to claim 2, characterized in that, After the compressor is turned on, adjust the operating frequency of the compressor according to the exhaust temperature of the compressor.

4. The standby control method according to claim 3, characterized in that, When the exhaust temperature of the compressor is lower than a third preset temperature, increase the operating frequency of the compressor.

5. The standby control method according to claim 2, characterized in that, After the compressor is turned on, adjust the refrigerant opening degree of the refrigerant heat exchange pipe according to the internal temperature of the electric control box.

6. The standby control method according to claim 5, characterized in that, The greater the difference between the internal temperature of the electric control box and the first preset temperature, the greater the refrigerant opening degree of the refrigerant heat exchange pipe.

7. The standby control method according to claim 2, characterized in that, After the compressor is turned on, control the auxiliary electric heater to stop running.

8. The standby control method according to claim 2, characterized in that, In the case where the ambient temperature is less than the second preset temperature, when the duration for which the internal temperature of the electric control box is greater than the first preset temperature reaches a second preset duration, control the compressor to stop.

9. The standby control method according to claim 1, characterized in that, The internal temperature of the electric control box is measured by any one of the following: The temperature measurement module of the main control board; The first sensor disposed inside the electric control box; The second sensor disposed in the refrigerant heat exchange pipe.

10. An operation control device, characterized in that, Comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executes the program to implement the standby control method according to any one of claims 1 to 9.

11. An air conditioner, characterized in that it comprises the operation control device according to claim 10.

12. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions for causing a computer to execute the standby control method according to any one of claims 1 to 9.

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