Control Method, Device and Storage Medium of Air Conditioner

Abstract

The present invention provides a control method, device and storage medium for an air conditioner. The control method of the air conditioner includes the following steps: obtaining the outdoor exhaust temperature and the outdoor ambient temperature; obtaining the temperature difference between the outdoor exhaust temperature and the outdoor ambient temperature; obtaining a preset difference, and controlling the compressor of the air conditioner to start according to the relationship between the temperature difference and the preset difference. In the control method of the air conditioner provided by the present invention, when the air conditioner is restarted, according to the temperature difference between the outdoor exhaust temperature and the outdoor ambient temperature, the state of the outdoor unit of the air conditioner can be judged, and further whether the compressor has completely eliminated the state residue at the time of the previous shutdown can be obtained. By controlling the compressor to start through the temperature difference, it is not necessary to make the compressor start with a delay every time, ensuring the safety of the compressor and at the same time ensuring that the air conditioner can quickly enter the working state.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning devices, and particularly to a control method, device and storage medium for an air conditioner. Background Art

[0002] The power outage compensation function is a function of the working state of an air conditioner. When a power outage occurs in the power supply line, the air conditioner will memorize the working state of the air conditioner before the power outage. When the power comes back, the air conditioner will automatically work according to the memorized state without manual startup.

[0003] In areas with unstable power supplies, when the air conditioner model has the power outage compensation function, the compressor will frequently start. To prevent the compressor from frequently starting and stopping, in the prior art, the compressor of the air conditioner will start only after the air conditioner has been powered on and running for 3 minutes. However, the power outage compensation function causes the compressor to be unable to start working normally when the air conditioner starts normally or starts again after a long power outage duration, and there will still be a delayed start, reducing the cooling or heating efficiency of the air conditioner and unable to quickly enter the working state. Summary of the Invention

[0004] The present invention provides a control method, device and storage medium for an air conditioner to solve the problem that the air conditioner cannot quickly enter the working state and achieve the quick operation of the air conditioner.

[0005] The present invention provides a control method for an air conditioner, including the following steps:

[0006] Obtain the outdoor exhaust gas temperature and the outdoor ambient temperature;

[0007] Obtain the temperature difference between the outdoor exhaust gas temperature and the outdoor ambient temperature;

[0008] Obtain a preset difference value, and control the compressor of the air conditioner to start according to the relationship between the temperature difference value and the preset difference value.

[0009] According to the control method for an air conditioner provided by the present invention, the step of controlling the compressor of the air conditioner to start according to the relationship between the temperature difference value and the preset difference value includes:

[0010] When the temperature difference value is greater than the preset difference value, control the compressor to start after a first preset time delay.

[0011] According to the control method for an air conditioner provided by the present invention, the step of controlling the compressor of the air conditioner to start according to the relationship between the temperature difference value and the preset difference value further includes:

[0012] When the temperature difference value is less than the preset difference value, control the compressor to start directly.

[0013] According to the control method of the air conditioner provided by the present invention, the method for setting the preset difference includes the following steps:

[0014] Obtain multiple ambient temperatures, and obtain the maximum temperature and the minimum temperature among them;

[0015] Obtain the ambient temperature difference between the maximum temperature and the minimum temperature;

[0016] Set the preset difference according to the ambient temperature difference.

[0017] According to the control method of the air conditioner provided by the present invention, the method for setting the preset difference includes the following steps:

[0018] Control the air conditioner to run in the test mode for a second preset time, and obtain the first exhaust temperature;

[0019] Obtain the second exhaust temperature after the air conditioner stops the test mode for a third preset time;

[0020] Obtain the exhaust temperature difference between the first exhaust temperature and the second exhaust temperature;

[0021] Set the preset difference according to the exhaust temperature difference.

[0022] According to the control method of the air conditioner provided by the present invention, before the steps of obtaining the outdoor exhaust temperature and the outdoor ambient temperature, it further includes:

[0023] Obtain the power-on state of the air conditioner;

[0024] Control to obtain the outdoor exhaust temperature and the outdoor ambient temperature according to the power-on state of the air conditioner.

[0025] According to the control method of the air conditioner provided by the present invention, the power-on state includes normal power-on and unstable power-on;

[0026] The step of obtaining the power-on state of the air conditioner includes:

[0027] Obtain the time difference between the last shutdown and the current startup of the air conditioner;

[0028] When the time difference is greater than the preset time difference, the air conditioner is in normal power-on;

[0029] When the time difference is less than the preset time difference, the air conditioner is in unstable power-on.

[0030] According to the control method of the air conditioner provided by the present invention, the power-on state includes normal power-on and unstable power-on;

[0031] The steps of controlling to obtain the outdoor exhaust temperature and the outdoor ambient temperature according to the power-on state of the air conditioner include:

[0032] When the air conditioner is normally powered on, obtain the outdoor exhaust temperature and the outdoor ambient temperature

[0033] When the air conditioner is unstably powered on, control the compressor to start after delaying for a first preset time.

[0034] The present invention also provides a control device for an air conditioner, including a memory, a processor, and a control program for the air conditioner stored on the memory and executable on the processor. The control program for the air conditioner is configured to implement the control method for the air conditioner according to any one of the above.

[0035] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the control method for the air conditioner according to any one of the above.

[0036] In the control method for the air conditioner provided by the present invention, when obtaining the outdoor exhaust temperature and the outdoor ambient temperature, since the compressor of the air conditioner will generate corresponding cooling and heating temperatures during operation, and even after the compressor is turned off, the temperature will still accumulate in the outdoor unit of the air conditioner. When the air conditioner is restarted, according to the temperature difference between the outdoor exhaust temperature and the outdoor ambient temperature, the state of the outdoor unit of the air conditioner can be judged, and then it can be obtained whether the compressor has completely eliminated the state residue when it was shut down last time. By controlling the start of the compressor through the temperature difference, it is not necessary to delay the start of the compressor every time, ensuring the safety of the compressor and at the same time ensuring that the air conditioner can quickly enter the working state. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is a flowchart of an embodiment of the control method for the air conditioner provided by the present invention;

[0039] Figure 2 It is a schematic block diagram of an embodiment of the control device provided by the present invention. Detailed Embodiments

[0040] To make the objectives, technical solutions and advantages of the present invention more clear, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Please refer to Figure 1 , the present invention provides a control method for an air conditioner, including the following steps:

[0042] S10. Obtain the outdoor exhaust temperature and the outdoor ambient temperature;

[0043] S20. Obtain the temperature difference between the outdoor exhaust temperature and the outdoor ambient temperature;

[0044] S30. Obtain a preset difference, and control the compressor of the air conditioner to start according to the relationship between the temperature difference and the preset difference.

[0045] In the control method for an air conditioner provided by the present invention, by obtaining the outdoor exhaust temperature and the outdoor ambient temperature, since the compressor of the air conditioner will generate corresponding cooling and heating temperatures during operation, even after the compressor is turned off, the temperature will still accumulate in the outdoor unit of the air conditioner. When the air conditioner is restarted, according to the temperature difference between the outdoor exhaust temperature and the outdoor ambient temperature, the state of the outdoor unit of the air conditioner can be judged, and then it can be obtained whether the compressor has completely eliminated the state residue during the previous shutdown. By controlling the start of the compressor through the temperature difference, it is not necessary to make the compressor start with a delay every time, ensuring the safety of the compressor and at the same time ensuring that the air conditioner can quickly enter the working state.

[0046] Further, step S30 includes:

[0047] S31. When the temperature difference is greater than the preset difference, control the compressor to start after delaying for a first preset time.

[0048] In this embodiment, when the temperature difference is greater than the preset difference, it indicates that at this time, there is still residual temperature left after the previous operation on the compressor, resulting in a large difference between the temperature of the compressor and the ambient temperature. When the compressor starts, a large current is required and system balance needs to be carried out inside. At this time, after waiting for the first preset time, then control the compressor to start, ensuring the normal start of the compressor and the normal use of the power failure compensation function of the air conditioner.

[0049] It should be noted that there are various implementation manners for the first preset time. In this embodiment, the first preset time is three minutes, and the setting of the first preset time is based on the average balanced cooling time of the compressor, which is not specifically limited herein.

[0050] In addition, step S30 further includes:

[0051] S32. When the temperature difference is less than the preset difference, control the compressor to start directly.

[0052] In this embodiment, when the temperature difference is less than the preset difference, it indicates that the residual state of the last operation of the compressor has dissipated at this time, and the compressor restarts completely from the stopped state. At this time, it is not necessary to make the compressor wait for a delayed start, and it can be started directly to complete the rapid control of the temperature.

[0053] On the other hand, in the present invention, the compressor is controlled by the relationship between the temperature difference and the preset difference. There are various ways to set the preset difference. In this embodiment, the method for setting the preset difference includes the following steps:

[0054] S301. Obtain multiple ambient temperatures, and obtain the maximum temperature and the minimum temperature among them;

[0055] S302. Obtain the ambient temperature difference between the maximum temperature and the minimum temperature;

[0056] S303. Set the preset difference according to the ambient temperature difference.

[0057] The outdoor environment itself may have large changes. In order to avoid the influence brought by the change of the outdoor environment itself, in this embodiment, multiple ambient temperatures are obtained, and the ambient temperature difference between the maximum temperature and the minimum temperature is obtained, and the preset difference is set according to the ambient temperature difference to avoid incorrect control caused by the change of the ambient temperature itself.

[0058] Specifically, in this embodiment, the preset difference is set to be greater than the ambient temperature difference to avoid incorrect control methods of the compressor when the air conditioner is turned on due to the fluctuation of the ambient temperature.

[0059] In addition, in step S301, there are various ways to obtain the multiple ambient temperatures. It can be the temperatures at multiple time nodes within one day, or the temperatures collected multiple times every day within multiple consecutive days, and then the maximum temperature and the minimum temperature are obtained therefrom. This is not specifically limited herein and can be selected according to the actual situation.

[0060] Similarly, the preset difference can be re - collected every preset time, so as to change according to the changes of time and season, which is more in line with the actual usage situation.

[0061] On the other hand, the method for setting the preset difference includes the following steps:

[0062] S304. Control the air conditioner to operate in the test mode for a second preset time, and obtain the first exhaust gas temperature;

[0063] S305. Obtain the second exhaust gas temperature after the air conditioner stops the test mode for a third preset time;

[0064] S306. Obtain the exhaust gas temperature difference between the first exhaust gas temperature and the second exhaust gas temperature;

[0065] S307. Set the preset difference according to the exhaust gas temperature difference.

[0066] After the compressor stops running, the internal balance operation of the compressor and the external temperature will gradually balance and dissipate. In this embodiment, first obtain the first exhaust gas temperature when the air conditioner is working normally, then shut down the air conditioner to start the internal self - balance and temperature dissipation. After the internal pressure is completely balanced, record the second exhaust gas temperature, and set the preset difference according to the exhaust gas temperature difference between the first exhaust gas temperature and the second exhaust gas temperature, so as to ensure that the preset difference can meet the requirements of the normal operation of the compressor, avoid incorrect setting of the preset difference, and prevent the compressor from being difficult to start due to starting directly before the internal balance.

[0067] It should be noted that the test mode is set according to the usage environment of the air conditioner. When refrigeration mode is required in summer, it runs in the refrigeration mode; when heating mode is required in winter, it runs in the heating mode. The operating parameters work according to the default settings at the time of leaving the factory of the air conditioner, and no specific restrictions are made here.

[0068] In addition, the setting of the second preset time is determined according to the duration when each component of the air conditioner is just awakened. As long as it can ensure that the work of each component of the air conditioner is awakened, no specific restrictions are made here, and different settings are made according to different models of actual air conditioners.

[0069] Similarly, the third preset time is determined according to the balance time of the compressor. As long as it is ensured that the internal pressure of the compressor has been balanced and it can be directly started next time, the temperature at this time reflects whether the compressor can be directly started.

[0070] Specifically, in step S307, the preset difference is set to be less than the exhaust gas temperature difference. In this embodiment, the influence of the temperature change caused by the exhaust gas temperature itself on the operation of the compressor is avoided. The exhaust gas temperature difference indicates the minimum temperature difference at which the air conditioner needs to perform compressor balancing. When the preset difference is less than the minimum temperature difference, the compressor does not need to perform pressure balancing and can be directly started.

[0071] Based on the above control method of the air conditioner, the present invention provides a specific embodiment.

[0072] In this embodiment, the preset difference t is set according to the ambient temperature difference t1 and the exhaust gas temperature difference t2, where t1 < t < t2;

[0073] Among them, the exhaust gas temperature difference t2 is obtained by running the air conditioner in the test mode for one minute, measuring the first exhaust gas temperature, then stopping the machine, and measuring the second exhaust gas temperature three minutes later.

[0074] When the temperature difference is greater than t, control the compressor to start after delaying the first preset time, where the first preset time is three minutes.

[0075] When the temperature difference is less than t, control the compressor to start directly.

[0076] On the other hand, before step S10, it further includes:

[0077] S01. Obtain the power-on state of the air conditioner;

[0078] S02. According to the power-on state of the air conditioner, control to obtain the outdoor exhaust gas temperature and the outdoor ambient temperature.

[0079] In this embodiment, according to the power-on state of the air conditioner, it is judged whether the air conditioner is in the state of power-off and restart, and then it is decided whether to enable the power-off compensation method or control the compressor to start according to the temperature difference, without the need to perform power-off compensation every time it starts, or judge the temperature difference every time it starts, saving system resources.

[0080] Specifically, in this embodiment, the power-on state includes normal power-on and unstable power-on;

[0081] Step S01 includes:

[0082] S011. Obtain the time difference between the last shutdown and the current start of the air conditioner;

[0083] By setting the time difference, frequent start and stop of the air conditioner are avoided.

[0084] S012, when the time difference is greater than the preset time difference, the air conditioner is powered on normally;

[0085] In this embodiment, when the time difference is greater than the preset time difference, it indicates that the air conditioner has not been turned off and on in a short time, and the influence of power fluctuation or power outage has disappeared. At this time, even if the air conditioner turns on automatically due to power-on, it can be judged that multiple frequent starts and stops will not occur in a short time. At this time, the air conditioner is powered on normally.

[0086] S013: When the time difference is less than a preset time difference, the air conditioner is powered on in an unstable manner.

[0087] In this embodiment, when the time difference is less than the preset time difference, it indicates that the air conditioner has been powered off and turned on again in a short period of time. Even if it is manually controlled, the compressor will not have time to react, that is, the power-on device of the air conditioner is set to unstable power-on.

[0088] It should be noted that there are multiple ways to set the preset time difference, which is intended to determine whether the air conditioner has started and stopped multiple times in a short period of time. For example, the preset time difference is set to one minute, and no specific limitation is made here.

[0089] Specifically, in this embodiment, the power-on state includes normal power-on and unstable power-on;

[0090] Step S02 includes:

[0091] S021. When the air conditioner is powered on normally, obtaining the outdoor exhaust temperature and the outdoor ambient temperature;

[0092] In this embodiment, when the air conditioner is powered on normally, in order to enable the air conditioner to quickly heat up, the start-up of the compressor is controlled by the outdoor exhaust temperature and the outdoor ambient temperature, without delaying the start-up of the compressor every time.

[0093] S022. When the air conditioner is powered on unstably, control the compressor to start after a delay of a first preset time.

[0094] In this embodiment, the air conditioner may start and stop multiple times in a short period of time. At this time, in order to ensure the safety of the compressor, the power failure compensation function of the air conditioner is directly started, that is, the compressor is controlled to start after the first preset time is delayed.

[0095] The embodiment of the present invention further provides a controller, Figure 2 The physical structure diagram of the controller is shown as follows: Figure 2As shown, the controller may include: a processor 1001, a communications interface 1002, a memory 1003, and a communication bus 1004. Among them, the processor 1001, the communications interface 1002, and the memory 1003 complete mutual communication through the communication bus 1004.

[0096] The processor 1001 may call the logic instructions in the memory 1003 to execute the above method: obtain the outdoor exhaust temperature and the outdoor ambient temperature; obtain the temperature difference between the outdoor exhaust temperature and the outdoor ambient temperature; obtain a preset difference, and control the compressor of the air conditioner to start according to the relationship between the temperature difference and the preset difference.

[0097] In addition, when the logic instructions in the above-mentioned memory 1003 can be implemented in the form of software function units and sold or used as an independent product, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0098] It should be noted that the controller in this embodiment may be a server, a PC, or other devices when specifically implemented, as long as its structure includes, as Figure 2 shown, a processor 1001, a communications interface 1002, a memory 1003, and a communication bus 1004. Among them, the processor 1001, the communications interface 1002, and the memory 1003 complete mutual communication through the communication bus 1004, and the processor 1001 can call the logic instructions in the memory 1003 to execute the above method. This embodiment does not limit the specific implementation form of the controller.

[0099] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the control method of the air-conditioning system provided by each of the above method embodiments. The method includes: obtaining the outdoor exhaust temperature and the outdoor ambient temperature; obtaining the temperature difference between the outdoor exhaust temperature and the outdoor ambient temperature; obtaining a preset difference, and controlling the compressor of the air conditioner to start according to the relationship between the temperature difference and the preset difference.

[0100] In another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it is configured to execute the control method of the air-conditioning system provided by each of the above method embodiments.

[0101] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without creative efforts.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for an air conditioner, characterized in that, It includes the following steps: Obtain the outdoor exhaust temperature and the outdoor ambient temperature; Obtain the temperature difference between the outdoor exhaust temperature and the outdoor ambient temperature; Obtain a preset difference, and control the compressor of the air conditioner to start according to the relationship between the temperature difference and the preset difference; The step of controlling the compressor of the air conditioner to start according to the relationship between the temperature difference and the preset difference includes: When the temperature difference is greater than the preset difference, control the compressor to start after delaying for a first preset time; The step of controlling the compressor of the air conditioner to start according to the relationship between the temperature difference and the preset difference further includes: When the temperature difference is less than the preset difference, control the compressor to start directly.

2. The control method for an air conditioner according to claim 1, characterized in that, The method for setting the preset difference includes the following steps: Obtain multiple ambient temperatures, and obtain the maximum temperature and the minimum temperature among them; Obtain the ambient temperature difference between the maximum temperature and the minimum temperature; Set the preset difference according to the ambient temperature difference.

3. The control method for an air conditioner according to claim 1, characterized in that, The method for setting the preset difference includes the following steps: Control the air conditioner to operate in a test mode for a second preset time, and obtain the first exhaust temperature; Obtain the second exhaust temperature after the air conditioner stops the test mode for a third preset time; Obtain the exhaust temperature difference between the first exhaust temperature and the second exhaust temperature; Set the preset difference according to the exhaust temperature difference.

4. The control method for an air conditioner according to claim 1, characterized in that, Before the step of obtaining the outdoor exhaust temperature and the outdoor ambient temperature, it further includes: Obtain the power-on state of the air conditioner; Control to obtain the outdoor exhaust temperature and the outdoor ambient temperature according to the power-on state of the air conditioner.

5. The control method for an air conditioner according to claim 4, characterized in that, The power-on state includes normal power-on and unstable power-on; The step of obtaining the power-on state of the air conditioner includes: Obtain the time difference between the last shutdown and the current startup of the air conditioner; When the time difference is greater than a preset time difference, the air conditioner is in normal power-on; When the time difference is less than the preset time difference, the air conditioner is in unstable power-on.

6. The control method for an air conditioner according to claim 4, characterized in that, The power-on state includes normal power-on and unstable power-on; The step of controlling to obtain the outdoor exhaust temperature and the outdoor ambient temperature according to the power-on state of the air conditioner includes: When the air conditioner is in normal power-on, obtain the outdoor exhaust temperature and the outdoor ambient temperature; When the air conditioner is in unstable power-on, control the compressor to start after delaying for a first preset time.

7. A control device for an air conditioner, characterized in that, It includes a memory, a processor, and a control program of the air conditioner stored on the memory and operable on the processor. The control program of the air conditioner is configured to implement the control method of the air conditioner according to any one of claims 1 to 6.

8. A non-transitory computer-readable storage medium, on which a computer program is stored, characterized in that, When the computer program is executed by the processor, it implements the control method of the air conditioner according to any one of claims 1 to 6.

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