Control method of mobile air conditioner and mobile air conditioner

Abstract

The invention provides a control method of a mobile air conditioner and the mobile air conditioner. The control method of the mobile air conditioner comprises the steps that the indoor environment temperature is obtained, and the air speed of an outer draught fan is determined according to the indoor environment temperature. The problem that a fixed-frequency mobile air conditioner cannot adjust the rotating speed of the direct current motor according to the outdoor environment temperature is solved, the wind speed of the fixed-frequency mobile air conditioner can be accurately adjusted according to the indoor environment temperature, and then the experience feeling of a user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a control method of a mobile air conditioner and the mobile air conditioner. Background Art

[0002] At present, when some air conditioners use a combination of fixed-frequency compressors and DC motors, they often choose to skip the compressor frequency judgment step and directly examine the outdoor ambient temperature with a higher priority. The principle is that variable-frequency air conditioners usually rely on detecting the value of the outdoor ambient temperature to determine the change in the compressor frequency, and then indirectly control the change in the speed level of the DC motor. When using a fixed-frequency compressor, the link of the compressor frequency change can be skipped, and the outdoor ambient temperature and the DC motor level can be directly controlled as function variables. However, this method cannot be used on fixed-frequency mobile air conditioners due to the special configuration of mobile air conditioners. The biggest difference between mobile air conditioners and conventional split air conditioners is that the entire body is located on the indoor side, including the heat exchangers, and is only connected to the outdoor side through the air duct. This results in the mobile air conditioner being unable to accurately detect the precise outdoor temperature value, and even for some single-duct models, it is completely impossible to detect the outdoor temperature value. Therefore, when using the DC motor solution on a fixed-frequency mobile air conditioner, the motor speed regulation method needs to be considered separately, and a new reference variable is selected to adjust the DC motor speed. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a control method and a mobile air conditioner that overcome the above problems or at least partially solve the above problems, and can solve the problem that a fixed-frequency mobile air conditioner cannot adjust the speed of the DC motor according to the outdoor ambient temperature.

[0004] Specifically, the present invention provides a control method for a mobile air conditioner, comprising: obtaining an indoor ambient temperature; and determining a wind speed of an outdoor fan according to the indoor ambient temperature.

[0005] Optionally, determining the wind speed of the outdoor fan according to the indoor ambient temperature includes:

[0006] Determine the wind speed of the outdoor fan according to the indoor ambient temperature and the target set temperature; or

[0007] Determine the wind speed of the external fan according to the degree of temperature change of the indoor ambient temperature; or

[0008] The wind speed of the outdoor fan is determined according to the temperature variation degree of the indoor ambient temperature and the preset relationship between the indoor ambient temperature and the target set temperature.

[0009] Optionally, determining the wind speed of the external fan according to the indoor ambient temperature includes: an initial wind speed setting step: determining the initial wind speed of the external fan according to the indoor ambient temperature and a target set temperature; and / or a wind speed adjustment step: adjusting the wind speed of the external fan according to the degree of temperature change of the indoor ambient temperature.

[0010] Optionally, the wind speed adjustment step includes:

[0011] After entering the wind speed adjustment step, a first difference is obtained according to the difference between the indoor ambient temperature and the target setting temperature obtained last time; or, after entering the wind speed adjustment step, a first difference is obtained according to the difference between the indoor ambient temperature and the target setting temperature obtained for the first time;

[0012] Obtaining a second difference value according to the difference value between the indoor ambient temperature obtained this time and the target setting temperature;

[0013] The wind speed of the external fan is determined according to the difference between the first difference and the second difference.

[0014] Optionally, determining the wind speed of the external fan according to the difference between the first difference and the second difference includes:

[0015] When the difference between the first difference and the second difference is greater than or equal to a third preset temperature, adjusting the wind speed to a level 2 wind speed;

[0016] When the difference between the first difference and the second difference is greater than or equal to the fourth preset temperature and less than the third preset temperature, the wind speed is adjusted to level three wind speed;

[0017] When the difference between the first difference and the second difference is less than a fourth preset temperature, the wind speed is adjusted to level 4 wind speed;

[0018] The level 2 wind speed is lower than the level 3 wind speed, and the level 3 wind speed is lower than the level 4 wind speed; the third preset temperature is higher than the fourth preset temperature.

[0019] Optionally, the control method further includes: determining whether the target setting temperature has changed, and if so, entering an initial wind speed setting step.

[0020] Optionally, the control method further includes: when the target setting temperature is set for the first time after the mobile air conditioner is turned on, starting the external fan according to the starting wind speed and entering the initial wind speed setting step.

[0021] Optionally, the initial wind speed setting step includes:

[0022] When the difference between the indoor ambient temperature and the target set temperature is greater than or equal to a first preset temperature, determining that the initial wind speed of the outdoor fan is level 4 wind speed;

[0023] When the difference between the indoor ambient temperature and the target set temperature is greater than or equal to the second preset temperature and less than the first preset temperature, determining that the initial wind speed of the outdoor fan is level three wind speed;

[0024] When the difference between the indoor ambient temperature and the target set temperature is greater than the fifth preset temperature and less than the second preset temperature, determining that the initial wind speed of the outdoor fan is a level 2 wind speed;

[0025] When the difference between the indoor ambient temperature and the target set temperature is less than or equal to a fifth preset temperature, determining that the outdoor fan is shut down;

[0026] The first preset temperature is greater than the second preset temperature, and the second preset temperature is greater than the fifth preset temperature; the fourth level wind speed is greater than the third level wind speed, and the third level wind speed is greater than the second level wind speed.

[0027] Optionally, the wind speed adjustment step also includes: if the difference between the indoor ambient temperature and the target setting temperature is less than or equal to a first preset value, the wind speed of the outdoor fan is controlled according to a preset strategy, and the indoor ambient temperature is obtained; when the difference between the indoor ambient temperature and the target setting temperature is greater than the first preset value for a consecutive preset number of times, the initial wind speed setting step is entered.

[0028] The present invention also provides a mobile air conditioner, comprising: a controller, the controller comprising a memory, a processor and a machine executable program stored in the memory and running on the processor, and the processor implements any of the control methods described above when executing the machine executable program.

[0029] In the control method of the mobile air conditioner of the present invention, a technical means is proposed for determining the wind speed of the outdoor fan of the mobile air conditioner according to the indoor ambient temperature, which solves the problem that the fixed-frequency mobile air conditioner cannot adjust the speed of the DC motor according to the outdoor ambient temperature. The wind speed of the fixed-frequency mobile air conditioner can be accurately adjusted according to the indoor ambient temperature, thereby improving the user experience.

[0030] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0032] Figure 1 is a schematic flow chart of a control method for a mobile air conditioner according to an embodiment of the present invention;

[0033] Figure 2 is a schematic flow chart of a wind speed adjustment step in a control method according to an embodiment of the present invention;

[0034] Figure 3 is a schematic flow chart of a wind speed adjustment step in a control method according to another embodiment of the present invention;

[0035] Figure 4 is a schematic flow chart of a wind speed adjustment step in a control method according to another embodiment of the present invention;

[0036] Figure 5 is a schematic flow chart of an initial wind speed setting step in a control method according to an embodiment of the present invention;

[0037] Figure 6 is a schematic structural diagram of a controller in a mobile air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION

[0038] Refer to the following Figures 1 to 6 To describe the control method of a mobile air conditioner and the mobile air conditioner of an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0039] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] In the prior art, when fixed-frequency mobile air conditioners use DC motors, there is a contradiction: DC motors usually have the advantage of adjustable speeds in multiple gears. If they are operated at a fixed wind speed, they have no advantage over ordinary AC iron shell motors. However, for fixed-frequency mobile air conditioners, since the compressor has a fixed operating frequency, the DC motor cannot adjust the wind speed level according to the frequency change of the variable-frequency compressor like the common variable-frequency air conditioners. In other words, the DC motor needs to find another basis for adjusting the wind speed.

[0041] Figure 1 is a schematic flow chart of a control method for a mobile air conditioner according to an embodiment of the present invention, Figure 1 As shown, an embodiment of the present invention provides a control method for a mobile air conditioner, comprising the following steps:

[0042] Step S1: Obtain the indoor ambient temperature.

[0043] Step S2: Determine the wind speed of the outdoor fan according to the indoor ambient temperature.

[0044] In this embodiment, after the mobile air conditioner enters the cooling state, the present invention proposes a technical means for determining the wind speed of the mobile air conditioner's outdoor fan according to the indoor ambient temperature, thereby solving the problem that the fixed-frequency mobile air conditioner cannot adjust the DC motor speed according to the outdoor ambient temperature.

[0045] Through the control method of this embodiment, the present invention can accurately adjust the wind speed of the fixed-frequency mobile air conditioner according to the indoor ambient temperature, thereby improving the user experience.

[0046] In some embodiments of the present invention, determining the wind speed of the external fan according to the indoor ambient temperature includes: determining the wind speed of the external fan according to the indoor ambient temperature and a target set temperature.

[0047] In this embodiment, the present invention proposes a technical means for determining the wind speed of the outdoor fan according to the relationship between the difference between the indoor ambient temperature and the target set temperature and the preset temperature. That is, according to the different relationships between the difference between the indoor ambient temperature and the target set temperature and the preset temperature, the wind speed of the outdoor fan is adjusted to the corresponding wind speed level.

[0048] The indoor ambient temperature is the temperature acquired by the sensor, and the target setting temperature is the temperature set by the user for the mobile air conditioner.

[0049] Through the control method of this embodiment, the present invention can accurately adjust the wind speed of the fixed-frequency mobile air conditioner according to the relationship between the difference between the indoor ambient temperature and the target set temperature and the preset temperature, thereby improving the user experience.

[0050] In other embodiments of the present invention, determining the wind speed of the external fan according to the indoor ambient temperature includes: determining the wind speed of the external fan according to the degree of temperature change of the indoor ambient temperature.

[0051] Preferably, the temperature change degree of the indoor ambient temperature includes the temperature change rate of the indoor ambient temperature.

[0052] In this embodiment, the present invention proposes a technical means for determining the wind speed of the outdoor fan according to the degree of temperature change of the indoor ambient temperature. That is, within a preset time, the wind speed of the outdoor fan is adjusted according to the relationship between the temperature change of the indoor ambient temperature and the preset temperature. And when switching between wind speed levels of the outdoor fan, a first preset time interval is required to prevent the wind speed level from jumping frequently. The first preset time interval is 20s, which can be adjusted according to actual needs.

[0053] Through the control method of this embodiment, the present invention can accurately adjust the wind speed of the fixed-frequency mobile air conditioner according to the relationship between the temperature change of the indoor ambient temperature and the preset temperature, maintain the wind speed of the mobile air conditioner at the most appropriate wind speed level, thereby improving the user experience.

[0054] In other embodiments of the present invention, determining the wind speed of the outdoor fan according to the indoor ambient temperature includes: determining the wind speed of the outdoor fan according to the temperature change degree of the indoor ambient temperature and a preset relationship between the indoor ambient temperature and a target set temperature.

[0055] In this embodiment, the present invention proposes a technical means for determining the wind speed of the outdoor fan according to the relationship between the temperature change degree of the indoor ambient temperature and a preset value, and the preset relationship between the indoor ambient temperature and the target setting temperature. When the mobile air conditioner detects that the difference between the indoor ambient temperature and the target setting temperature is less than or equal to a first preset value, the wind speed of the outdoor fan is adjusted according to the preset relationship; when the mobile air conditioner detects that the difference between the indoor ambient temperature and the target setting temperature is greater than the first preset value for two consecutive times, the speed of the outdoor fan is adjusted according to the relationship between the temperature change degree of the indoor ambient temperature and the preset value; wherein the first preset value is 0.

[0056] Through the control method of this embodiment, the present invention can accurately adjust the wind speed of the fixed-frequency mobile air conditioner according to the relationship between the temperature change degree of the indoor ambient temperature and the preset value, and the preset relationship between the indoor ambient temperature and the target set temperature, so as to keep the wind speed of the mobile air conditioner at the most appropriate wind speed level, thereby improving the user experience.

[0057] In some embodiments of the present invention, the wind speed of the external fan is determined according to the indoor ambient temperature, including: an initial wind speed setting step: determining the initial wind speed of the external fan according to the indoor ambient temperature and the target set temperature; and a wind speed adjustment step: adjusting the wind speed of the external fan according to the degree of temperature change of the indoor ambient temperature.

[0058] In this embodiment, the control method of the mobile air conditioner of the present invention includes an initial wind speed setting step and a wind speed adjustment step. When the mobile air conditioner is just started, the mobile air conditioner will adjust the wind speed of the external fan according to the initial wind speed setting step; when the initial wind speed setting step is completed, the mobile air conditioner will wait for a second preset time, and then adjust the wind speed of the external fan according to the wind speed adjustment step. Among them, the second preset time is 3 to 5 minutes, which can be determined according to actual conditions.

[0059] In the initial wind speed setting step, the mobile air conditioner adjusts the wind speed of the outdoor fan according to the relationship between the difference between the indoor ambient temperature and the target setting temperature and the preset temperature; and according to the different relationships between the difference between the indoor ambient temperature and the target setting temperature and the preset temperature, the wind speed of the outdoor fan is adjusted to a preset wind speed level; wherein the wind speed levels include level 1 wind speed, level 2 wind speed, level 3 wind speed, and level 4 wind speed; and level 1 wind speed < level 2 wind speed < level 3 wind speed < level 4 wind speed.

[0060] In the wind speed adjustment step, the mobile air conditioner adjusts the wind speed of the outdoor fan according to the relationship between the temperature change degree of the indoor ambient temperature and the preset temperature; and according to the different relationships between the temperature change degree of the indoor ambient temperature and the preset temperature, the wind speed of the outdoor fan is adjusted to a preset wind speed level; wherein the wind speed levels include level 2 wind speed, level 3 wind speed, and level 4 wind speed; and level 2 wind speed < level 3 wind speed < level 4 wind speed.

[0061] In the wind speed adjustment step, when switching between wind speed levels of the outdoor fan, a first preset time interval is required to prevent the wind speed level from frequently jumping. The first preset time interval is 20s and can be adjusted according to actual needs.

[0062] Through the control method of this embodiment, the present invention proposes a technical means to adjust the wind speed of the external fan according to the initial wind speed setting step and the wind speed adjustment step, which can accurately control the wind speed of the external fan and keep the wind speed of the mobile air conditioner at the most appropriate wind speed level, thereby improving the user experience.

[0063] In some embodiments of the present invention, the wind speed of the external fan is determined according to the indoor ambient temperature, including: an initial wind speed setting step: determining the initial wind speed of the external fan according to the indoor ambient temperature and the target set temperature; or, a wind speed adjustment step: adjusting the wind speed of the external fan according to the degree of temperature change of the indoor ambient temperature.

[0064] In this embodiment, during the operation of the mobile air conditioner, when the indoor ambient temperature varies greatly, the mobile air conditioner will perform an initial wind speed setting step or a wind speed adjustment step according to actual conditions.

[0065] For example, after the mobile air conditioner has completed the initial wind speed setting step, when the difference between the real-time detected indoor ambient temperature and the target set temperature is less than the first preset value, the wind speed of the external fan is adjusted according to the preset relationship when the difference between the indoor ambient temperature and the target set temperature is less than the first preset value. The means for adjusting the wind speed of the external fan include adjusting the wind speed of the external fan to level 1, stopping the external fan, restarting the external fan and adjusting the wind speed level to level 3. Then the initial wind speed setting step is performed again.

[0066] During the process of the mobile air conditioner performing the wind speed adjustment step, when the target setting temperature changes, the wind speed of the outdoor fan maintains the current wind speed level, and then the initial wind speed setting step is performed. When the target setting temperature remains unchanged, the wind speed adjustment step is continued.

[0067] Through the control method of this embodiment, the present invention proposes a technical means to adjust the wind speed of the external fan according to the initial wind speed setting step or the wind speed adjustment step, which can accurately control the wind speed of the external fan and keep the wind speed of the mobile air conditioner at the most appropriate wind speed level, thereby improving the user experience.

[0068] In some embodiments of the present invention, reference Figure 2 , the wind speed adjustment step includes the following steps:

[0069] Step S11: after entering the wind speed adjustment step, a first difference is obtained according to the difference between the indoor environment temperature obtained last time and the target setting temperature.

[0070] Step S13: Obtain a second difference value according to the difference value between the indoor environment temperature obtained this time and the target setting temperature.

[0071] Step S14: determining the wind speed of the external fan according to the difference between the first difference and the second difference.

[0072] In this embodiment, when the mobile air conditioner performs the wind speed adjustment step, the indoor environment temperature and the target setting temperature are obtained last time, and the difference between the indoor environment temperature and the target setting temperature is calculated to obtain a first difference. When the first difference is greater than the first preset value, after an interval sampling period, the current indoor environment temperature and the target setting temperature are obtained this time, and the difference between the indoor environment temperature and the target setting temperature is calculated to obtain a second difference. When the second difference is greater than the first preset value, the difference between the first difference and the second difference is calculated, and the speed of the outdoor fan is adjusted according to the relationship between the difference and the preset temperature.

[0073] Through the control method of this embodiment, in the wind speed adjustment step proposed by the present invention, a technical means is adopted to adjust the wind speed of the external fan according to the relationship between the difference between the indoor ambient temperature and the target set temperature obtained twice in a row and the preset temperature, so as to accurately control the wind speed of the external fan and keep the wind speed of the mobile air conditioner at the most appropriate wind speed level, thereby improving the user experience.

[0074] In some embodiments of the present invention, reference Figure 3 , the wind speed adjustment step includes the following steps:

[0075] Step S12: After entering the wind speed adjustment step, a first difference is obtained according to the difference between the indoor ambient temperature obtained for the first time and the target setting temperature.

[0076] Step S13: Obtain a second difference value according to the difference value between the indoor environment temperature obtained this time and the target setting temperature.

[0077] Step S14: determining the wind speed of the external fan according to the difference between the first difference and the second difference.

[0078] In this embodiment, when the mobile air conditioner performs the wind speed adjustment step, the indoor ambient temperature and the target setting temperature are obtained for the first time, and the difference between the indoor ambient temperature and the target setting temperature is calculated to obtain a first difference, and the first difference is greater than a first preset value. When the target setting temperature remains unchanged, after a certain number of sampling cycles, the current indoor ambient temperature is obtained, and the difference between the indoor ambient temperature and the target setting temperature is calculated to obtain a second difference. When the second difference is greater than the first preset value, the difference between the first difference and the second difference is calculated, and the speed of the outdoor fan is adjusted according to the relationship between the difference and the preset temperature. Among them, the first preset value is 0.

[0079] Through the control method of this embodiment, in the wind speed adjustment step proposed by the present invention, when the target set temperature remains unchanged, a technical means is adopted to adjust the wind speed of the external fan based on the relationship between the difference between the indoor ambient temperature and the target set temperature obtained twice at an interval of several sampling cycles and the preset temperature, so as to accurately control the wind speed of the external fan and keep the wind speed of the external fan of the mobile air conditioner at the most appropriate wind speed level, thereby improving the user experience.

[0080] In some embodiments of the present invention, reference Figure 4 , determining the wind speed of the external fan according to the difference between the first difference and the second difference, comprising the following steps:

[0081] Step S22: When the difference between the first difference and the second difference is greater than or equal to the third preset temperature, the wind speed is adjusted to level 2 wind speed.

[0082] Step S23: When the difference between the first difference and the second difference is greater than or equal to the fourth preset temperature and less than the third preset temperature, the wind speed is adjusted to level three wind speed.

[0083] Step S24: when the difference between the first difference and the second difference is less than the fourth preset temperature, the wind speed is adjusted to level 4 wind speed.

[0084] In this embodiment, the second-level wind speed is less than the third-level wind speed, and the third-level wind speed is less than the fourth-level wind speed; the third preset temperature is greater than the fourth preset temperature. The third preset temperature and the fourth preset temperature can be determined according to actual conditions. When switching the wind speed level of the external fan, a first preset time interval is required to prevent the wind speed level from frequently jumping. The first preset time interval is 20s, which can be adjusted according to actual needs.

[0085] Through the control method of this embodiment, in the wind speed adjustment step proposed by the present invention, the wind speed of the external fan is adjusted according to the relationship between the difference between the first difference and the second difference and the preset temperature. The wind speed of the external fan can be accurately controlled according to the current actual situation, and the wind speed of the mobile air conditioner can be kept at the most appropriate wind speed level, thereby improving the user experience.

[0086] In some embodiments of the present invention, the control method further includes: determining whether the target setting temperature has changed, and if so, entering the initial wind speed setting step.

[0087] In this embodiment, when the target set temperature of the mobile air conditioner is changed, the mobile air conditioner no longer continues to perform the wind speed adjustment step, but performs the initial wind speed setting step to adjust the wind speed of the outdoor fan.

[0088] Through the control method of this embodiment, when the target setting temperature of the mobile air conditioner changes, the wind speed adjustment step is performed based on the adjusted target setting temperature to adjust the wind speed of the external fan, which will put the user in a colder or hotter indoor environment, thereby affecting the user experience. However, the initial wind speed adjustment step can allow the mobile air conditioner to re-adjust the speed of the external fan according to the relationship between the indoor ambient temperature, the target setting temperature and the preset temperature, so as to keep the wind speed of the mobile air conditioner at the most appropriate wind speed level, thereby improving the user experience.

[0089] In some embodiments of the present invention, the control method further includes: when the target setting temperature is set for the first time after the mobile air conditioner is turned on, starting the external fan according to the starting wind speed and entering the initial wind speed setting step.

[0090] In this embodiment, when the mobile air conditioner is turned on, the external fan is started at the starting wind speed and the initial wind speed setting step is entered at the same time. When the wind speed of the external fan reaches the starting wind speed, after waiting for a first time period, the wind speed level of the external fan is adjusted according to the preset relationship between the indoor ambient temperature obtained when the mobile air conditioner is turned on and the target setting temperature.

[0091] Preferably, the first duration is 1 minute, and the starting wind speed can be level 3 wind speed or level 2 wind speed, which is set according to actual conditions.

[0092] Through the control method of this embodiment, when the mobile air conditioner is turned on and after the external fan is started, if the wind speed of the external fan has not reached the starting wind speed, the wind speed level of the external fan will not be changed; after the wind speed of the external fan reaches the starting wind speed and waits for the first period of time, the wind speed of the external fan is adjusted according to the judgment result in the initial wind speed setting step.

[0093] In some embodiments of the present invention, reference Figure 5 , the initial wind speed setting step includes the following steps:

[0094] Step S31: when the difference between the indoor ambient temperature and the target set temperature is greater than or equal to the first preset temperature, the initial wind speed of the outdoor fan is determined to be level 4 wind speed.

[0095] Step S32: when the difference between the indoor ambient temperature and the target set temperature is greater than or equal to the second preset temperature and less than the first preset temperature, the initial wind speed of the outdoor fan is determined to be level three wind speed.

[0096] Step S33: When the difference between the indoor ambient temperature and the target set temperature is greater than the fifth preset temperature and less than the second preset temperature, the initial wind speed of the outdoor fan is determined to be a level 2 wind speed.

[0097] Step S34: When the difference between the indoor ambient temperature and the target set temperature is less than or equal to the fifth preset temperature, it is determined that the outdoor fan is shut down.

[0098] In this embodiment, the first preset temperature is greater than the second preset temperature, the second preset temperature is greater than the fifth preset temperature; the fourth wind speed is greater than the third wind speed, and the third wind speed is greater than the second wind speed.

[0099] Preferably, the first duration is 1 minute and the second duration is 30 seconds.

[0100] In the initial wind speed setting step, when the wind speed level of the external fan needs to be adjusted, it is necessary to wait for a first time period and then adjust the wind speed of the external fan to the corresponding wind speed level.

[0101] In step S34, when the difference between the indoor ambient temperature and the target set temperature is less than or equal to the fifth preset temperature, wait for a first period of time, then adjust the wind speed of the outdoor fan to level one, and then after a second period of time, adjust the outdoor fan to stop.

[0102] Through the control method of this embodiment, the initial wind speed setting step adjusts the wind speed of the outdoor fan to different wind speed levels according to the different relationships between the difference between the indoor ambient temperature and the target set temperature and the preset temperature, so as to accurately control the wind speed of the outdoor fan and keep the wind speed of the mobile air conditioner at the most appropriate wind speed level, thereby improving the user experience.

[0103] In some embodiments of the present invention, the wind speed adjustment step also includes: if the difference between the indoor ambient temperature and the target setting temperature is less than or equal to a first preset value, the wind speed of the external fan is controlled according to a preset strategy, and the indoor ambient temperature is obtained. When the difference between the indoor ambient temperature and the target setting temperature for a consecutive preset number of times is greater than the first preset value, the initial wind speed setting step is entered.

[0104] Preferably, the first preset value is 0, and the preset number of times is 10 times.

[0105] In this embodiment, when the mobile air conditioner executes the wind speed adjustment step, when the difference between the indoor ambient temperature and the target setting temperature is less than or equal to the first preset value, the mobile air conditioner does not continue to execute the judgment between the difference between the indoor ambient temperature and the target setting temperature and the preset temperature.

[0106] Instead, the wind speed of the external fan is controlled according to a preset strategy. Controlling the wind speed of the external fan according to the preset strategy includes: the external fan continues to execute at the current wind speed level for a first period of time, and then the wind speed of the external fan is adjusted to a level one wind speed. After a second period of time, if the difference between the detected indoor ambient temperature and the target set temperature is still less than or equal to the first preset value, the external fan is shut down.

[0107] Preferably, the first time length is 1 minute, the second time length is 30 seconds, and the sampling period can be set according to actual conditions.

[0108] After each sampling period, the indoor environment temperature and the target setting temperature are obtained once, and then the difference between the indoor environment temperature and the target setting temperature is calculated and stored. Regardless of whether the difference between the indoor environment temperature and the target setting temperature is greater than the first preset value, the difference is stored. When the continuously stored differences are greater than the first preset value and the number of consecutive times reaches the preset number, the mobile air conditioner performs the initial wind speed setting step.

[0109] Through the control method of this embodiment, the present invention adopts a processing method when the difference between the indoor ambient temperature and the target set temperature is less than or equal to the first preset value, so as to accurately control the wind speed of the external fan and keep the wind speed of the mobile air conditioner at the most appropriate wind speed level, thereby improving the user experience.

[0110] In some embodiments of the present invention, the control method further includes: when the external fan is triggered to stop according to a preset condition, controlling the external fan according to a corresponding preset control strategy.

[0111] Furthermore, in some embodiments of the present invention, when the preset condition is that the compressor is shut down, the preset control strategy is: first adjust the wind speed of the external fan to the first level wind speed, and then adjust the external fan to stop; when the preset condition is that a mobile air conditioner fault is detected, the preset control strategy is: adjust and lock the wind speed to the second level wind speed.

[0112] In this embodiment, the preset condition is that when the compressor is shut down, the wind speed of the external fan is first adjusted to the first-level wind speed, and after waiting for the second time period, the external fan is adjusted to stop, and the second time period is 30 seconds.

[0113] The preset condition is that when a mobile air conditioner fault is detected and the compressor is turned on, the wind speed of the external fan is adjusted and locked to level 2. When the compressor is turned off, the wind speed lock of the external fan is exited; or when the mobile air conditioner fault is cleared, the wind speed lock of the external fan is exited; or when the mobile air conditioner is turned off, the wind speed lock of the external fan is exited.

[0114] Through the control method of this embodiment, the present invention adopts a technical means to adjust the wind speed of the external fan when the compressor is shut down or the mobile air conditioner fails, thereby avoiding other faults caused by the external fan at a high wind speed level, and even causing damage to the mobile air conditioner, thereby improving the safety of the mobile air conditioner.

[0115] In some embodiments of the present invention, when it is detected that the external coil temperature is greater than the first set value, the wind speed is determined to be level five; when the external coil temperature is detected to be greater than the first set value for the second time, the compressor is shut down; when the external coil temperature is detected to be greater than the first set value for the third time, the mobile air conditioner is shut down and an alarm is issued.

[0116] Preferably, the third time length is 1 minute, the fourth time length is 90 seconds, the first set value is the set upper limit value of the external coil temperature, the fifth wind speed is greater than the fourth wind speed, and the fifth wind speed is the highest wind speed.

[0117] In this embodiment, during the operation of the mobile air conditioner, when the temperature of the external coil is greater than the first set value, the temperature of the external coil is detected again after a third time interval; when the temperature of the external coil is greater than the first set value for the second time, the temperature of the external coil is detected again after a fourth time interval. And according to the number of consecutive times that the temperature of the external coil is greater than the first set value, the corresponding processing measures are taken.

[0118] When the temperature of the external coil is less than or equal to the first set value, the initial wind speed setting step is re-executed to adjust the wind speed of the external fan.

[0119] Through the control method of this embodiment, the present invention adopts a processing method when the temperature of the external coil is greater than the first set value to process the abnormal temperature of the external coil of the mobile air conditioner, thereby improving the safety and reliability of the mobile air conditioner.

[0120] In some embodiments of the present invention, the wind speed levels of the external fan include level 1 wind speed, level 2 wind speed, level 3 wind speed, level 4 wind speed and level 5 wind speed, and level 1 wind speed < level 2 wind speed < level 3 wind speed < level 4 wind speed < level 5 wind speed, and the wind speeds from small to large correspond to weak wind, low wind, medium wind, high wind and super strong wind.

[0121] The present invention also provides a mobile air conditioner, referring to Figure 6 The mobile air conditioner includes a controller 500, which includes a memory 520, a processor 510, and a machine executable program 41 stored in the memory 520 and running on the processor 510, and the processor 510 implements the control method described in any of the above embodiments when executing the machine executable program 41.

[0122] In this embodiment, the mobile air conditioner includes a controller 500, so that the controller 500 controls various parameters of the mobile air conditioner, including at least the compressor frequency and the external fan speed. At the same time, it can control the indoor ambient temperature sensor to obtain the indoor ambient temperature, the external coil sensor to obtain the external coil temperature, and the speed sensor to obtain the speed of the external fan, so as to ensure the normal operation of the air conditioner and enhance the user experience.

[0123] The controller 500 includes a memory 520 and a processor 510. The memory 520 stores at least the indoor ambient temperature, the target set temperature, the difference in the wind speed adjustment step, and a machine executable program 41 corresponding to the above-mentioned control method. The machine executable program 41 running on the processor 510 can implement the control method described in any of the above-mentioned embodiments to adjust the speed of the outdoor fan of the mobile air conditioner.

[0124] It should be noted that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or equipment (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or equipment and execute instructions), or used in combination with these instruction execution systems, devices or equipment.

[0125] For the purposes of the description of this embodiment, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use with an instruction execution system, device or apparatus or in conjunction with such instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection having one or more wirings (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and editable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, a computer-readable medium may even be paper or other suitable medium on which the program may be printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0126] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0127] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A control method for a mobile air conditioner, characterized in that: include: Get the indoor ambient temperature; The wind speed of the outdoor fan is determined according to the indoor ambient temperature.

2. The control method according to claim 1, characterized in that: The step of determining the wind speed of the outdoor fan according to the indoor ambient temperature includes: Determine the wind speed of the outdoor fan according to the indoor ambient temperature and the target set temperature; or Determine the wind speed of the external fan according to the degree of temperature change of the indoor ambient temperature; or The wind speed of the outdoor fan is determined according to the temperature variation degree of the indoor ambient temperature and the preset relationship between the indoor ambient temperature and the target set temperature.

3. The control method according to claim 1, characterized in that: The step of determining the wind speed of the outdoor fan according to the indoor ambient temperature includes: Initial wind speed setting step: determining the initial wind speed of the outdoor fan according to the indoor ambient temperature and the target set temperature; and / or Wind speed adjustment step: adjusting the wind speed of the external fan according to the degree of temperature change of the indoor ambient temperature.

4. The control method according to claim 3, characterized in that: The wind speed adjustment step comprises: After entering the wind speed adjustment step, a first difference is obtained according to the difference between the indoor ambient temperature and the target setting temperature obtained last time; or, after entering the wind speed adjustment step, a first difference is obtained according to the difference between the indoor ambient temperature and the target setting temperature obtained for the first time; Obtaining a second difference value according to the difference value between the indoor ambient temperature obtained this time and the target setting temperature; The wind speed of the external fan is determined according to the difference between the first difference and the second difference.

5. The control method according to claim 4, characterized in that: The step of determining the wind speed of the external fan according to the difference between the first difference and the second difference includes: When the difference between the first difference and the second difference is greater than or equal to a third preset temperature, adjusting the wind speed to a level 2 wind speed; When the difference between the first difference and the second difference is greater than or equal to the fourth preset temperature and less than the third preset temperature, the wind speed is adjusted to level three wind speed; When the difference between the first difference and the second difference is less than a fourth preset temperature, the wind speed is adjusted to level 4 wind speed; The level 2 wind speed is lower than the level 3 wind speed, and the level 3 wind speed is lower than the level 4 wind speed; the third preset temperature is higher than the fourth preset temperature.

6. The control method according to claim 2, characterized in that: Also includes: Determine whether the target setting temperature has changed. If so, enter the initial wind speed setting step.

7. The control method according to claim 2, characterized in that: Also includes: When the target setting temperature is set for the first time after the mobile air conditioner is turned on, the external fan is started according to the starting wind speed, and the initial wind speed setting step is entered.

8. The control method according to claim 3, characterized in that: The initial wind speed setting step comprises: When the difference between the indoor ambient temperature and the target set temperature is greater than or equal to a first preset temperature, determining that the initial wind speed of the outdoor fan is level 4 wind speed; When the difference between the indoor ambient temperature and the target set temperature is greater than or equal to the second preset temperature and less than the first preset temperature, determining that the initial wind speed of the outdoor fan is level three wind speed; When the difference between the indoor ambient temperature and the target set temperature is greater than the fifth preset temperature and less than the second preset temperature, determining that the initial wind speed of the outdoor fan is a level 2 wind speed; When the difference between the indoor ambient temperature and the target set temperature is less than or equal to a fifth preset temperature, determining that the outdoor fan is shut down; The first preset temperature is greater than the second preset temperature, and the second preset temperature is greater than the fifth preset temperature; the fourth level wind speed is greater than the third level wind speed, and the third level wind speed is greater than the second level wind speed.

9. The control method according to claim 3, characterized in that: The wind speed adjustment step also includes: If the difference between the indoor ambient temperature and the target setting temperature is less than or equal to a first preset value, the wind speed of the outdoor fan is controlled according to a preset strategy, and the indoor ambient temperature is obtained. When the difference between the indoor ambient temperature and the target setting temperature is greater than the first preset value for a consecutive preset number of times, the initial wind speed setting step is entered.

10. A mobile air conditioner, characterized in that: include: A controller, the controller comprising a memory, a processor and a machine executable program stored in the memory and running on the processor, and the processor implements the control method according to any one of claims 1 to 9 when executing the machine executable program.

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