Control method and control device for single-cold air conditioner, and single-cold air conditioner

Abstract

The application provides a control method and device of a single cold air conditioner and the single cold air conditioner. The method comprises the following steps: obtaining last dust removal information and current load information of the single cold air conditioner; determining whether the last dust removal information and the current load information meet dust removal conditions; if yes, controlling the single cold air conditioner to enter a dust removal mode; in the dust removal mode, obtaining an inlet temperature and an outlet temperature of a condenser in the single cold air conditioner and an outdoor environment temperature; in the dust removal mode, controlling the working state of at least one of a spraying device, an ultrasonic oscillator and an outdoor fan according to the inlet temperature, the outlet temperature and the outdoor environment temperature, so as to realize dust removal of the condenser. The control method and device of the single cold air conditioner and the single cold air conditioner realize targeted and efficient dust removal of the condenser, and the method can select a dust removal means according to different situations of dust accumulation of the condenser, so as to improve dust removal efficiency and reduce unnecessary power consumption.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and in particular to a control method, control device, and single-cooling air conditioner. Background Technology

[0002] In related technologies, single-cooling systems do not require consideration of frost formation, making the matching of finned heat exchangers with good heat exchange performance a development trend. However, finned heat exchangers are prone to dust accumulation. As the air conditioner is used over time, the accumulated dust on the finned heat exchangers increases air resistance and affects heat dissipation. Existing dust removal systems are designed for general-purpose dust removal, primarily targeting easily cleaned corrugated fins. When applied to finned evaporators, the dust removal effect is significantly reduced. Furthermore, existing control systems rely on a single timed fan reversal control, which can no longer meet the multi-zone, multi-scenario dust removal needs of finned heat exchangers. Summary of the Invention

[0003] This invention provides a control method, control device, and single-cooling air conditioner, achieving the following technical effects: targeted and efficient dust removal of the condenser; and, depending on the different dust accumulation conditions of the condenser, this method can selectively choose dust removal methods, thereby improving dust removal efficiency and reducing unnecessary power consumption.

[0004] According to a control method for a single-cooling air conditioner according to a first aspect of the present invention, the outdoor unit of the single-cooling air conditioner is provided with a spray device for spraying water toward the condenser and an ultrasonic oscillator.

[0005] The control method includes:

[0006] Obtain the previous dust removal information and current load information of the single-cooling air conditioner;

[0007] If the previous dust removal information and the current load information are determined to meet the dust removal conditions, then the single-cooling air conditioner is controlled to enter the dust removal mode;

[0008] In the dust removal mode, the inlet and outlet temperatures of the condenser inside the single-cooling air conditioner, as well as the outdoor ambient temperature, are obtained.

[0009] In the dust removal mode, the operating state of at least one of the spray device, the ultrasonic oscillator, and the outdoor fan is controlled and adjusted according to the inlet temperature, the outlet temperature, and the outdoor ambient temperature to achieve dust removal from the condenser.

[0010] According to an embodiment of the present invention, the step of determining that the previous dust removal information and the current load information meet the dust removal conditions, and then controlling the single-cooling air conditioner to enter the dust removal mode, specifically includes:

[0011] If it is determined that the interval between the current single-cooling air conditioner and the last dust removal exceeds the set interval, and it is determined that the current single-cooling air conditioner is operating at full load, then the single-cooling air conditioner is controlled to enter the dust removal mode.

[0012] According to an embodiment of the present invention, the step of controlling and adjusting the operating state of at least one of the spray device, the ultrasonic oscillator, and the outdoor fan according to the inlet temperature, the outlet temperature, and the outdoor ambient temperature in the dust removal mode to achieve dust removal of the condenser specifically includes:

[0013] If the outdoor ambient temperature is greater than the set ambient temperature, the first calculation result of the first formula composed of the inlet temperature, the outlet temperature and the outdoor ambient temperature is calculated, and the working state of at least one of the spray device, the ultrasonic oscillator and the outdoor fan is controlled and adjusted according to the range of the first calculation result.

[0014] If the outdoor ambient temperature is less than or equal to the set ambient temperature, the second calculation result of the second formula composed of the inlet temperature, the outlet temperature and the outdoor ambient temperature is calculated, and the working state of at least one of the spray device, the ultrasonic oscillator and the outdoor fan is controlled and adjusted according to the range of the second calculation result.

[0015] Wherein, both the first calculation result and the second calculation result are positively correlated with the outdoor ambient temperature, and the proportionality coefficient multiplied by the outdoor ambient temperature in the first calculation formula is the first proportionality coefficient, and the proportionality coefficient multiplied by the outdoor ambient temperature in the second calculation formula is the second proportionality coefficient, and the first proportionality coefficient is greater than the second proportionality coefficient.

[0016] According to one embodiment of the present invention, the inlet temperature is marked as toci, the outlet temperature is marked as tdef, and the outdoor ambient temperature is marked as t;

[0017] The first calculation formula is: toci - tdef - toci / 2 + 1.5(t - 35);

[0018] The second calculation formula is: toci - tdef - toci / 2 + (t - 35);

[0019] Wherein, the first proportionality coefficient is 1.5 and the second proportionality coefficient is 1.

[0020] According to an embodiment of the present invention, the step of controlling and adjusting the operating state of at least one of the spray device, the ultrasonic oscillator, and the outdoor fan based on the range of the first calculation result specifically includes:

[0021] If the first calculation result is greater than the first set value, it is determined whether the first calculation result satisfies at least one of the first calculation conditions;

[0022] If so, then control the outdoor fan to rotate in reverse, turn on the spray device to spray water onto the condenser, and turn on the ultrasonic oscillator to agitate the condenser.

[0023] If not, then only the outdoor fan is controlled to rotate in reverse, at which time both the sprinkler device and the ultrasonic oscillator are turned off;

[0024] The first calculation condition includes: the first calculation result is greater than the second set value, and the first calculation result obtained in two consecutive calculations is greater than the first set value.

[0025] The first setting value is less than the second setting value.

[0026] According to an embodiment of the present invention, the step of controlling and adjusting the operating state of at least one of the spray device, the ultrasonic oscillator, and the outdoor fan based on the range of the second calculation result specifically includes:

[0027] If the second calculation result is greater than the first set value, determine whether the second calculation result satisfies at least one of the second calculation conditions;

[0028] If so, then control the outdoor fan to rotate in reverse, turn on the spray device to spray water onto the condenser, and turn on the ultrasonic oscillator to agitate the condenser.

[0029] If not, then only the outdoor fan is controlled to rotate in reverse, at which time both the sprinkler device and the ultrasonic oscillator are turned off;

[0030] The second calculation condition includes: the second calculation result is greater than the second set value, and the second calculation result obtained twice consecutively is greater than the first set value;

[0031] The first setting value is less than the second setting value.

[0032] According to one embodiment of the present invention, the first setting value is 3°C and the second setting value is 5°C.

[0033] According to a second aspect of the present invention, the control device for a single-cooling air conditioner is provided in the outdoor unit of the single-cooling air conditioner, which is equipped with a spray device for spraying water toward the condenser and an ultrasonic oscillator.

[0034] The control device includes:

[0035] The first acquisition module is used to acquire the previous dust removal information and the current load information of the single-cooling air conditioner;

[0036] The first control module is used to determine if the previous dust removal information and the current load information meet the dust removal conditions, and then control the single-cooling air conditioner to enter the dust removal mode.

[0037] The second acquisition module is used to acquire the inlet temperature and outlet temperature of the condenser inside the single-cooling air conditioner, as well as the outdoor ambient temperature, in the dust removal mode.

[0038] The second control module is used to control and adjust the working state of at least one of the spray device, the ultrasonic oscillator and the outdoor fan according to the inlet temperature, the outlet temperature and the outdoor ambient temperature in the dust removal mode, so as to achieve dust removal of the condenser.

[0039] According to a third aspect of the present invention, a single-cooling air conditioner includes an indoor unit and an outdoor unit, wherein the indoor unit is provided with an evaporator and the outdoor unit is provided with a condenser, an outdoor fan, a spray device and an ultrasonic oscillator.

[0040] The single-cooling air conditioner further includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the control method for the single-cooling air conditioner as described in the first aspect of the present invention.

[0041] According to one embodiment of the present invention, the spraying device includes a spray head and a spray water pipe, wherein the spray head is disposed between the condenser and the outdoor fan;

[0042] The indoor unit is also equipped with a condensate collector, and the spray pipe is connected to the condensate collector and used to deliver condensate to the spray head.

[0043] This invention provides a control method for a single-cooling air conditioner. This method collects the inlet and outlet temperatures of the condenser and the outdoor ambient temperature, and determines the degree of dust accumulation on the condenser based on these factors. Then, based on the determination results, it controls and adjusts modules such as the fan, spray device, and ultrasonic oscillator installed within the single-cooling air conditioner. This achieves targeted and efficient dust removal from the condenser. Furthermore, this method can selectively choose dust removal methods based on different dust accumulation conditions on the condenser, thereby improving dust removal efficiency and reducing unnecessary power consumption. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 This is a flowchart illustrating the control method for a single-cooling air conditioner provided by the present invention;

[0046] Figure 2 This is a schematic diagram of the control device for a single-cooling air conditioner provided by the present invention;

[0047] Figure 3 This is one of the structural schematic diagrams of the outdoor unit of the single-cooling air conditioner provided by the present invention;

[0048] Figure 4 This is the second schematic diagram of the outdoor unit of the single-cooling air conditioner provided by the present invention;

[0049] Figure 5 This is a schematic diagram of the structure of the electronic device provided by the present invention.

[0050] Figure label:

[0051] 1. Outdoor unit; 11. Imported temperature sensor; 12. Outlet temperature sensor; 13. Outdoor ambient temperature sensor; 2. Compressor; 3. Condenser; 4. Outdoor fan; 51. Spray head; 52. Spray water pipe; 6. Ultrasonic oscillator; 7. Gas-liquid separator. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] The control method, control device, and single-cooling air conditioner proposed in this invention are described below with reference to the accompanying drawings. Before detailing the embodiments of this invention, the overall application scenario is described first. The control method, control device, electronic device, and computer-readable storage medium of the single-cooling air conditioner of this invention can be applied locally to the single-cooling air conditioner, to cloud platforms in the Internet field, or to other types of cloud platforms in the Internet field, or to third-party devices. These third-party devices may include various types such as mobile phones, tablets, laptops, in-vehicle computers, and other smart terminals.

[0055] The following explanation uses a control method applicable only to cooling-only air conditioners as an example. It should be understood that the control method of this embodiment can also be applied to cloud platforms and third-party devices. It should be explained that a cooling-only air conditioner refers to an air conditioner that only has a cooling function and is generally used in summer. In contrast, a cooling-and-heating air conditioner is an air conditioner that can both cool and heat, and can be used in both summer and winter. Furthermore, a cooling-only air conditioner includes a compressor 2, a condenser 3, an evaporator, and an electronic expansion valve. A four-way valve is not installed in a cooling-only air conditioner; it only serves a cooling function.

[0056] Before introducing the control method for a single-cooling air conditioner of the present invention, the specific structure of the single-cooling air conditioner to which this control method is applicable is first described: The single-cooling air conditioner includes an indoor unit and an outdoor unit 1. The indoor unit is equipped with an evaporator, and the outdoor unit 1 is equipped with a condenser 3, an outdoor fan 4, a spray device, and an ultrasonic oscillator 6. The spray device is used to spray water toward the condenser 3 to clean the dust on the condenser 3, and the ultrasonic oscillator 6 is used to vibrate the condenser 3 to remove dust that has fallen onto the surface of the condenser 3.

[0057] like Figure 1 As shown, a control method for a single-cooling air conditioner according to a first aspect embodiment of the present invention includes:

[0058] Step S1: Obtain the previous dust removal information and current load information of the single-cooling air conditioner;

[0059] Step S2: If the previous dust removal information and the current load information meet the dust removal conditions, then control the single-cooling air conditioner to enter the dust removal mode.

[0060] Step S3: In dust removal mode, obtain the inlet and outlet temperatures of the condenser 3 inside the single-cooling air conditioner, as well as the outdoor ambient temperature.

[0061] Step S4: In dust removal mode, the operating status of at least one of the spray device, ultrasonic oscillator 6 and outdoor fan 4 is controlled and adjusted according to the inlet temperature, outlet temperature and outdoor ambient temperature to achieve dust removal of condenser 3.

[0062] According to the control method of the single-cooling air conditioner according to an embodiment of the present invention, the specific working process is as follows: First, after determining that the single-cooling air conditioner is turned on and running, the controller first obtains the last dust removal information and the current load information of the single-cooling air conditioner. The last dust removal information refers to the parameter information and status information of the single-cooling air conditioner during the last dust removal, including but not limited to the time interval between the current single-cooling air conditioner and the last dust removal. The current load information refers to the operating load of the single-cooling air conditioner at the current time. Through the current load information, the controller can determine whether the single-cooling air conditioner is currently operating under low load, high load, or full load conditions.

[0063] After obtaining the previous dust removal information and the current load information, the controller further determines whether the above information meets the dust removal conditions. If the dust removal conditions are met, it proves that the condenser 3 of the single-cooling air conditioner needs to be dusted, so the controller controls the single-cooling air conditioner to enter the dust removal mode. For example, the dust removal conditions are: the interval between the current single-cooling air conditioner and the last dust removal exceeds the set interval, and the current single-cooling air conditioner is operating at full load.

[0064] After entering the dust removal mode, the controller further acquires the inlet and outlet temperatures of the condenser 3 inside the single-cooling air conditioner, as well as the outdoor ambient temperature. Subsequently, the controller analyzes and judges the inlet, outlet, and outdoor ambient temperatures to determine the current degree of dust accumulation on the condenser 3. Based on this, the controller selectively controls and adjusts the operating status of at least one of the spray device, ultrasonic oscillator 6, and outdoor fan 4 to achieve efficient and thorough dust removal from the condenser 3. Thus, this method allows for targeted selection of dust removal methods based on different dust accumulation conditions on the condenser 3, thereby improving dust removal efficiency and reducing unnecessary power consumption.

[0065] In related technologies, single-cooling systems do not require consideration of frost formation, making the matching of finned heat exchangers with good heat exchange performance a development trend. However, finned heat exchangers are prone to dust accumulation. As the air conditioner is used over time, the accumulated dust on the finned heat exchangers increases air resistance and affects heat dissipation. Existing dust removal systems are designed for general-purpose dust removal, primarily targeting easily cleaned corrugated fins. When applied to finned evaporators, the dust removal effect is significantly reduced. Furthermore, existing control systems rely on a single timed fan reversal control, which can no longer meet the multi-zone, multi-scenario dust removal needs of finned heat exchangers.

[0066] In summary, to address the technical deficiencies in the aforementioned related technologies, this invention provides a control method for a single-cooling air conditioner. This control method collects the inlet and outlet temperatures of the condenser 3 and the outdoor ambient temperature, and determines the degree of dust accumulation on the condenser 3 based on these temperatures. Then, based on the determination results, it controls and adjusts modules such as the fan, spray device, and ultrasonic oscillator 6 installed in the single-cooling air conditioner, thereby achieving targeted and efficient dust removal from the condenser 3. Furthermore, this method can selectively choose dust removal methods according to different dust accumulation conditions on the condenser 3, thereby improving dust removal efficiency and reducing unnecessary power consumption.

[0067] According to some embodiments of the present invention, the step of controlling a single-cooling air conditioner to enter the dust removal mode after determining that the previous dust removal information and the current load information meet the dust removal conditions specifically includes:

[0068] If it is determined that the interval between the current cooling-only air conditioner and the last dust removal exceeds the set interval, and it is determined that the current cooling-only air conditioner is operating at full load, then the cooling-only air conditioner will be controlled to enter the dust removal mode.

[0069] It is understandable that after the last dust removal, as the air conditioner continues to run, dust will continue to accumulate on the condenser 3. When the dust accumulates to a certain extent, it will affect the operation of the air conditioner. This will be reflected in the operating parameters of the air conditioner, namely, an increase in the operating load of the single-cooling air conditioner. Therefore, if the interval between the last dust removal and the single-cooling air conditioner is too long, and the air conditioner is currently operating at full load, it proves that a lot of dust has accumulated on the condenser 3 over time, and the dust greatly affects the operation of the air conditioner, resulting in the air conditioner operating at full load. Therefore, after meeting the above dust removal conditions, the single-cooling air conditioner urgently needs to remove dust from the condenser 3. At this time, the controller controls the air conditioner to enter the dust removal mode.

[0070] For example, if it is determined that the interval between the current cooling-only air conditioner and the last dust removal exceeds three days, and it is determined that the current cooling-only air conditioner is operating at full load, then the cooling-only air conditioner will be controlled to enter the dust removal mode.

[0071] According to some embodiments of the present invention, in dust removal mode, the operating state of at least one of the spray device, ultrasonic oscillator 6, and outdoor fan 4 is controlled and adjusted based on the inlet temperature, outlet temperature, and outdoor ambient temperature to achieve dust removal of the condenser 3, specifically including:

[0072] When the outdoor ambient temperature is higher than the set ambient temperature, the first calculation result of the first formula composed of the inlet temperature, outlet temperature and outdoor ambient temperature is calculated, and the working state of at least one of the spray device, ultrasonic oscillator 6 and outdoor fan 4 is controlled and adjusted according to the range of the first calculation result.

[0073] When the outdoor ambient temperature is less than or equal to the set ambient temperature, the second calculation result of the second formula composed of the inlet temperature, outlet temperature and outdoor ambient temperature is calculated, and the working state of at least one of the spray device, ultrasonic oscillator 6 and outdoor fan 4 is controlled and adjusted according to the range of the second calculation result.

[0074] The first and second calculation results are both positively correlated with the outdoor ambient temperature. The proportionality coefficient multiplied by the outdoor ambient temperature in the first calculation formula is the first proportionality coefficient, and the proportionality coefficient multiplied by the outdoor ambient temperature in the second calculation formula is the second proportionality coefficient. The first proportionality coefficient is greater than the second proportionality coefficient.

[0075] Furthermore, the inlet temperature is marked as toci, the outlet temperature as tdef, and the outdoor ambient temperature as t.

[0076] The first calculation formula is: toci - tdef - toci / 2 + 1.5(t - 35);

[0077] The second calculation formula is: toci - tdef - toci / 2 + (t - 35);

[0078] The first proportionality coefficient is 1.5, and the second proportionality coefficient is 1.

[0079] According to some embodiments of the present invention, the step of controlling and adjusting the operating state of at least one of the sprinkler device, the ultrasonic oscillator 6, and the outdoor fan 4 based on the range of the first calculation result specifically includes:

[0080] If the first calculation result is greater than the first set value, determine whether the first calculation result satisfies at least one of the first calculation conditions;

[0081] If so, then control the outdoor fan 4 to rotate in reverse, turn on the spray device to spray water onto the condenser 3, and turn on the ultrasonic oscillator 6 to agitate the condenser 3.

[0082] If not, only the outdoor fan 4 is controlled to rotate in reverse, at which time both the sprinkler system and the ultrasonic oscillator 6 are turned off.

[0083] The first set value is less than the second set value. The first calculation conditions include: the first calculation result is greater than the second set value, and the first calculation result obtained twice consecutively is greater than the first set value.

[0084] Thus, it can be understood that when the first calculation result satisfies at least one of the first calculation conditions, it proves that the current dust accumulation degree of the condenser 3 is high. Therefore, it is necessary to simultaneously execute the outdoor fan 4 reversal, the spray device spraying, and the ultrasonic oscillator 6 oscillation to achieve thorough dust removal of the condenser 3. When the first calculation result does not satisfy any of the first calculation conditions, it proves that the current dust accumulation degree of the condenser 3 is low. In order to avoid wasting power, it is only necessary to execute the outdoor fan 4 reversal to achieve thorough dust removal of the condenser 3.

[0085] For example, if the first setpoint is 3℃ and the second setpoint is 5℃, the control method specifically includes: under the premise that toci-tdef-toci / 2+1.5(t-35)>3℃, if toci-tdef-toci / 2+1.5(t-35)>5℃ or the calculated result of toci-tdef-toci / 2+1.5(t-35) is greater than 3℃ twice consecutively, then the outdoor fan 4 is controlled to rotate in reverse, the spray device is turned on to spray water onto the condenser 3, and the ultrasonic oscillator 6 is turned on to agitate the condenser 3; if toci-tdef-toci / 2+1.5(t-35) is less than or equal to 5℃ and the calculated result of toci-tdef-toci / 2+1.5(t-35) is not greater than 3℃ twice consecutively, then only the outdoor fan 4 is controlled to rotate in reverse, and the spray device and the ultrasonic oscillator 6 are turned off.

[0086] According to other embodiments of the present invention, the step of controlling and adjusting the operating state of at least one of the sprinkler device, ultrasonic oscillator 6, and outdoor fan 4 based on the range of the second calculation result specifically includes:

[0087] If the second calculation result is greater than the first set value, determine whether the second calculation result satisfies at least one of the second calculation conditions;

[0088] If so, then control the outdoor fan 4 to rotate in reverse, turn on the spray device to spray water onto the condenser 3, and turn on the ultrasonic oscillator 6 to agitate the condenser 3.

[0089] If not, only the outdoor fan 4 is controlled to rotate in reverse, at which time both the sprinkler system and the ultrasonic oscillator 6 are turned off.

[0090] The first set value is less than the second set value. The second calculation conditions include: the second calculation result is greater than the second set value, and the second calculation result obtained twice consecutively is greater than the first set value.

[0091] Thus, it can be understood that when the second calculation result satisfies at least one of the second calculation conditions, it proves that the current dust accumulation degree of the condenser 3 is high. Therefore, it is necessary to simultaneously execute the outdoor fan 4 reversal, the spray device spraying, and the ultrasonic oscillator 6 oscillation to achieve thorough dust removal of the condenser 3. When the second calculation result does not satisfy any of the second calculation conditions, it proves that the current dust accumulation degree of the condenser 3 is low. In order to avoid wasting power, it is only necessary to execute the outdoor fan 4 reversal to achieve thorough dust removal of the condenser 3.

[0092] For example, if the first setpoint is 3℃ and the second setpoint is 5℃, the control method specifically includes: under the premise that toci-tdef-toci / 2+(t-35)>3℃, if toci-tdef-toci / 2+(t-35)>5℃ or the calculated result of toci-tdef-toci / 2+(t-35) is greater than 3℃ twice consecutively, then the outdoor fan 4 is controlled to rotate in reverse, the spray device is turned on to spray water onto the condenser 3, and the ultrasonic oscillator 6 is turned on to agitate the condenser 3; if toci-tdef-toci / 2+(t-35) is less than or equal to 5℃ and the calculated result of toci-tdef-toci / 2+(t-35) is not greater than 3℃ twice consecutively, then only the outdoor fan 4 is controlled to rotate in reverse, and the spray device and the ultrasonic oscillator 6 are turned off.

[0093] The control device for a single-cooling air conditioner provided by the present invention is described below. The control device for a single-cooling air conditioner described below can be referred to in correspondence with the control method for a single-cooling air conditioner described above.

[0094] like Figure 2 As shown, according to a second aspect embodiment of the present invention, the control device for a single-cooling air conditioner includes a spray device for spraying water toward the condenser 3 and an ultrasonic oscillator 6 inside the outdoor unit 1 of the single-cooling air conditioner. The control device includes:

[0095] The first acquisition module 110 is used to acquire the previous dust removal information and the current load information of the single-cooling air conditioner;

[0096] The first control module 120 is used to determine if the previous dust removal information and the current load information meet the dust removal conditions, and then control the single-cooling air conditioner to enter the dust removal mode.

[0097] The second acquisition module 130 is used to acquire the inlet temperature and outlet temperature of the condenser 3 inside the single-cooling air conditioner, as well as the outdoor ambient temperature, in the dust removal mode.

[0098] The second control module 140 is used to control and adjust the working state of at least one of the spray device, ultrasonic oscillator 6 and outdoor fan 4 according to the inlet temperature, outlet temperature and outdoor ambient temperature in the dust removal mode, so as to achieve dust removal of condenser 3.

[0099] The control device for a single-cooling air conditioner according to an embodiment of the present invention has a similar working process and working effect to the control method for a single-cooling air conditioner described in the first aspect of this application, and will not be repeated here.

[0100] like Figure 3 and Figure 4 As shown, a single-cooling air conditioner according to a third aspect embodiment of the present invention includes an indoor unit and an outdoor unit 1. The indoor unit is provided with an evaporator, and the outdoor unit 1 is provided with a condenser 3, an outdoor fan 4, a spray device and an ultrasonic oscillator 6.

[0101] The single-cooling air conditioner also includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the control method for the single-cooling air conditioner as described in the first aspect of the present invention.

[0102] like Figure 4 As shown, according to some embodiments of the present invention, the spray device includes a spray head 51 and a spray water pipe 52, with the spray head 51 disposed between the condenser 3 and the outdoor fan 4. A condensate collector is also provided inside the indoor unit, and the spray water pipe 52 is connected to the condensate collector and used to deliver condensate to the spray head 51.

[0103] like Figure 3 As shown, according to some embodiments of the present invention, the ultrasonic oscillator 6 is mounted on the surface of the condenser 3.

[0104] In summary, the single-cooling air conditioner according to the embodiments of the present invention solves the defect that the outdoor unit 1 cannot self-clean in single-cooling mode, and uses the condensate water of the indoor unit as a water source to spray the condenser 3, which is energy-saving and simple.

[0105] Figure 5 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 5As shown, the electronic device may include a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call logical instructions in the memory 830 to execute a control method for a single-cooling air conditioner. The method includes: acquiring the previous dust removal information and the current load information of the single-cooling air conditioner; determining that the previous dust removal information and the current load information meet the dust removal conditions, and then controlling the single-cooling air conditioner to enter the dust removal mode; in the dust removal mode, acquiring the inlet temperature and outlet temperature of the condenser 3 inside the single-cooling air conditioner, as well as the outdoor ambient temperature; and in the dust removal mode, controlling and adjusting the working state of at least one of the spray device, the ultrasonic oscillator 6, and the outdoor fan 4 according to the inlet temperature, the outlet temperature, and the outdoor ambient temperature to achieve dust removal of the condenser 3.

[0106] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the 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 to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0107] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the control method for a single-cooling air conditioner provided by the above methods. The method includes: acquiring the previous dust removal information and the current load information of the single-cooling air conditioner; determining that the previous dust removal information and the current load information meet the dust removal conditions, and then controlling the single-cooling air conditioner to enter the dust removal mode; in the dust removal mode, acquiring the inlet temperature and outlet temperature of the condenser 3 inside the single-cooling air conditioner, as well as the outdoor ambient temperature; and in the dust removal mode, controlling and adjusting the working state of at least one of the spray device, the ultrasonic oscillator 6, and the outdoor fan 4 according to the inlet temperature, the outlet temperature, and the outdoor ambient temperature to achieve dust removal of the condenser 3.

[0108] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the control method for a single-cooling air conditioner provided by the above methods. The method includes: acquiring the previous dust removal information and current load information of the single-cooling air conditioner; determining that the previous dust removal information and current load information meet the dust removal conditions, and then controlling the single-cooling air conditioner to enter a dust removal mode; in the dust removal mode, acquiring the inlet temperature and outlet temperature of the condenser 3 inside the single-cooling air conditioner, as well as the outdoor ambient temperature; and in the dust removal mode, controlling and adjusting the working state of at least one of the spray device, the ultrasonic oscillator 6, and the outdoor fan 4 according to the inlet temperature, the outlet temperature, and the outdoor ambient temperature to achieve dust removal of the condenser 3.

[0109] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0110] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions 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 a single-cooling air conditioner, characterized in that, The outdoor unit of the single-cooling air conditioner is equipped with a spray device for spraying water toward the condenser and an ultrasonic oscillator. The control method includes: Obtain the previous dust removal information and current load information of the single-cooling air conditioner; If the previous dust removal information and the current load information are determined to meet the dust removal conditions, then the single-cooling air conditioner is controlled to enter the dust removal mode; In the dust removal mode, the inlet and outlet temperatures of the condenser inside the single-cooling air conditioner, as well as the outdoor ambient temperature, are obtained. In the dust removal mode, the operating state of at least one of the spray device, the ultrasonic oscillator, and the outdoor fan is controlled and adjusted according to the inlet temperature, the outlet temperature, and the outdoor ambient temperature to achieve dust removal from the condenser. The step of determining that the previous dust removal information and the current load information meet the dust removal conditions, and then controlling the single-cooling air conditioner to enter the dust removal mode, specifically includes: If it is determined that the interval between the current single-cooling air conditioner and the last dust removal exceeds the set interval, and it is determined that the current single-cooling air conditioner is operating at full load, then the single-cooling air conditioner is controlled to enter the dust removal mode. In the dust removal mode, the step of controlling and adjusting the operating state of at least one of the spray device, the ultrasonic oscillator, and the outdoor fan according to the inlet temperature, the outlet temperature, and the outdoor ambient temperature to achieve dust removal from the condenser specifically includes: If the outdoor ambient temperature is greater than the set ambient temperature, the first calculation result of the first calculation formula composed of the inlet temperature, the outlet temperature and the outdoor ambient temperature is calculated, and the working state of at least one of the spray device, the ultrasonic oscillator and the outdoor fan is controlled and adjusted according to the range of the first calculation result. If the outdoor ambient temperature is less than or equal to the set ambient temperature, the second calculation result of the second calculation formula composed of the inlet temperature, the outlet temperature and the outdoor ambient temperature is calculated, and the working state of at least one of the spray device, the ultrasonic oscillator and the outdoor fan is controlled and adjusted according to the range of the second calculation result. Wherein, both the first calculation result and the second calculation result are positively correlated with the outdoor ambient temperature, and the proportionality coefficient multiplied by the outdoor ambient temperature in the first calculation formula is the first proportionality coefficient, and the proportionality coefficient multiplied by the outdoor ambient temperature in the second calculation formula is the second proportionality coefficient, and the first proportionality coefficient is greater than the second proportionality coefficient.

2. The control method for a single-cooling air conditioner according to claim 1, characterized in that, The inlet temperature is marked as toci, the outlet temperature is marked as tdef, and the outdoor ambient temperature is marked as t; The first calculation formula is: toci - tdef - toci / 2 + 1.5(t - 35); The second calculation formula is: toci - tdef - toci / 2 + (t - 35); Wherein, the first proportionality coefficient is 1.5 and the second proportionality coefficient is 1.

3. The control method for a single-cooling air conditioner according to claim 2, characterized in that, The step of controlling and adjusting the operating state of at least one of the spray device, the ultrasonic oscillator, and the outdoor fan according to the range of the first calculation result specifically includes: If the first calculation result is greater than the first set value, it is determined whether the first calculation result satisfies at least one of the first calculation conditions; If so, then control the outdoor fan to rotate in reverse, turn on the spray device to spray water onto the condenser, and turn on the ultrasonic oscillator to agitate the condenser. If not, then only the outdoor fan is controlled to rotate in reverse, at which time both the sprinkler device and the ultrasonic oscillator are turned off; The first calculation condition includes: the first calculation result is greater than the second set value, and the first calculation result obtained in two consecutive calculations is greater than the first set value. The first setting value is less than the second setting value.

4. The control method for a single-cooling air conditioner according to claim 2, characterized in that, The step of controlling and adjusting the operating state of at least one of the spray device, the ultrasonic oscillator, and the outdoor fan according to the range of the second calculation result specifically includes: If the second calculation result is greater than the first set value, determine whether the second calculation result satisfies at least one of the second calculation conditions; If so, then control the outdoor fan to rotate in reverse, turn on the spray device to spray water onto the condenser, and turn on the ultrasonic oscillator to agitate the condenser. If not, then only the outdoor fan is controlled to rotate in reverse, at which time both the sprinkler device and the ultrasonic oscillator are turned off; The second calculation condition includes: the second calculation result is greater than the second set value, and the second calculation result obtained twice consecutively is greater than the first set value; The first setting value is less than the second setting value.

5. The control method for a single-cooling air conditioner according to claim 3 or 4, characterized in that, The first setting is 3°C, and the second setting is 5°C.

6. A control device for a single-cooling air conditioner, characterized in that, The outdoor unit of the single-cooling air conditioner is equipped with a spray device for spraying water toward the condenser and an ultrasonic oscillator. The control device includes: The first acquisition module is used to acquire the previous dust removal information and the current load information of the single-cooling air conditioner; The first control module is used to determine if the previous dust removal information and the current load information meet the dust removal conditions, and then control the single-cooling air conditioner to enter the dust removal mode. The second acquisition module is used to acquire the inlet temperature and outlet temperature of the condenser inside the single-cooling air conditioner, as well as the outdoor ambient temperature, in the dust removal mode. The second control module is used to control and adjust the working state of at least one of the spray device, the ultrasonic oscillator and the outdoor fan according to the inlet temperature, the outlet temperature and the outdoor ambient temperature in the dust removal mode, so as to achieve dust removal of the condenser. The step of determining that the previous dust removal information and the current load information meet the dust removal conditions, and then controlling the single-cooling air conditioner to enter the dust removal mode, specifically includes: If it is determined that the interval between the current single-cooling air conditioner and the last dust removal exceeds the set interval, and it is determined that the current single-cooling air conditioner is operating at full load, then the single-cooling air conditioner is controlled to enter the dust removal mode. In the dust removal mode, the step of controlling and adjusting the operating state of at least one of the spray device, the ultrasonic oscillator, and the outdoor fan according to the inlet temperature, the outlet temperature, and the outdoor ambient temperature to achieve dust removal from the condenser specifically includes: If the outdoor ambient temperature is greater than the set ambient temperature, the first calculation result of the first calculation formula composed of the inlet temperature, the outlet temperature and the outdoor ambient temperature is calculated, and the working state of at least one of the spray device, the ultrasonic oscillator and the outdoor fan is controlled and adjusted according to the range of the first calculation result. If the outdoor ambient temperature is less than or equal to the set ambient temperature, the second calculation result of the second calculation formula composed of the inlet temperature, the outlet temperature and the outdoor ambient temperature is calculated, and the working state of at least one of the spray device, the ultrasonic oscillator and the outdoor fan is controlled and adjusted according to the range of the second calculation result. Wherein, both the first calculation result and the second calculation result are positively correlated with the outdoor ambient temperature, and the proportionality coefficient multiplied by the outdoor ambient temperature in the first calculation formula is the first proportionality coefficient, and the proportionality coefficient multiplied by the outdoor ambient temperature in the second calculation formula is the second proportionality coefficient, and the first proportionality coefficient is greater than the second proportionality coefficient.

7. A single-cooling air conditioner, characterized in that, It includes an indoor unit and an outdoor unit. The indoor unit contains an evaporator, and the outdoor unit contains a condenser, an outdoor fan, a spray device, and an ultrasonic oscillator. The single-cooling air conditioner further includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the control method of the single-cooling air conditioner as described in any one of claims 1 to 5.

8. The single-cooling air conditioner according to claim 7, characterized in that, The spraying device includes a spray head and a spray water pipe, and the spray head is disposed between the condenser and the outdoor fan. The indoor unit is also equipped with a condensate collector, and the spray pipe is connected to the condensate collector and used to deliver condensate to the spray head.

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