Control method, device and equipment of double-cross-flow air conditioner and storage medium

Abstract

The invention discloses a control method, device and equipment for a double-cross-flow air conditioner and a storage medium, and the method comprises the steps that under the condition that a lower draught fan of the double-cross-flow air conditioner is closed, a first temperature is obtained; the first temperature indicates the temperature of a room where the double-cross-flow air conditioner is located; under the condition that the first temperature is smaller than the first threshold temperature, the rotating speed of an upper draught fan of the double-cross-flow air conditioner is controlled to be increased to a first rotating speed according to a first mode; the first approach includes increasing over time.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of air conditioning technology, and particularly relates to a control method, device, equipment and storage medium for a double cross-flow air conditioner. Background Art

[0002] Two groups of cross-flow fans are arranged in the main housing of the double cross-flow air conditioner, corresponding to the upper air supply demand and the lower air supply demand respectively, so as to improve the air conditioning cooling / heating efficiency. In related technologies, in order to meet the user's upper air supply demand, when controlling the lower fan to close, the upper fan is directly controlled to increase to a fixed speed, resulting in a sudden change in the air supply speed and easily generating a large amount of noise. Summary of the Invention

[0003] This application provides a control method, device, equipment and storage medium for a double cross-flow air conditioner, which solves the problem in related technologies that when controlling the lower fan to close, the upper fan is directly controlled to increase to a fixed speed, resulting in a sudden change in the air supply speed and easily generating a large amount of noise.

[0004] The technical solution of this application is realized as follows:

[0005] A control method for a double cross-flow air conditioner, the method includes:

[0006] When the lower fan of the double cross-flow air conditioner is closed, obtain a first temperature; the first temperature indicates the temperature in the room where the double cross-flow air conditioner is located;

[0007] When the first temperature is less than a first threshold temperature, control the rotation speed of the upper fan of the double cross-flow air conditioner to increase to a first speed according to a first method; the first method includes increasing with the passage of time.

[0008] A control device for a double cross-flow air conditioner, the device includes:

[0009] An acquisition unit, configured to obtain a first temperature when the lower fan of the double cross-flow air conditioner is closed; the first temperature indicates the temperature in the room where the double cross-flow air conditioner is located;

[0010] A processing unit, configured to control the rotation speed of the upper fan of the double cross-flow air conditioner to increase to a first speed according to a first method when the first temperature is less than a first threshold temperature; the first method includes increasing with the passage of time.

[0011] A control equipment for a double cross-flow air conditioner, the equipment includes:

[0012] A memory, configured to store executable instructions;

[0013] A processor, configured to execute the executable instructions stored in the memory to implement the above control method for the double cross-flow air conditioner.

[0014] A storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the control method of the above double cross-flow air conditioner.

[0015] A control method, device, equipment and storage medium for a double cross-flow air conditioner provided by an embodiment of the present application. The method includes: when the lower blower of the double cross-flow air conditioner is closed, obtaining a first temperature; the first temperature indicates the temperature in the room where the double cross-flow air conditioner is located; when the first temperature is less than a first threshold temperature, controlling the rotation speed of the upper blower of the double cross-flow air conditioner to increase to a first rotation speed according to a first manner; the first manner includes increasing with the passage of time; this solves the problem in the related art that when controlling the lower blower to close, directly increasing the upper blower to a fixed rotation speed causes a sudden change in the air supply speed and is likely to generate a large noise. The present application controls the rotation speed of the upper blower to gradually increase to the target rotation speed over time based on the current ambient temperature, realizing a dynamic gradual change process of controlling the rotation speed of the upper blower according to the actual load demand, and preventing sudden noise changes caused by sudden changes in the wind speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic flowchart of a control method for a double cross-flow air conditioner according to an embodiment of the present application;

[0017] Figure 2 It is a schematic structural diagram of a double cross-flow air conditioner in an actual scenario according to an embodiment of the present application;

[0018] Figure 3 It is a schematic flowchart of a control method for a double cross-flow air conditioner in an actual scenario according to an embodiment of the present application;

[0019] Figure 4 It is a schematic structural diagram of a control device for a double cross-flow air conditioner according to an embodiment of the present application;

[0020] Figure 5 It is a schematic structural diagram of a control device for a double cross-flow air conditioner according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. The described embodiments should not be regarded as limitations of the present application. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0022] In the following description, reference is made to "some embodiments", which describe a subset of all possible embodiments. However, it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

[0023] In the following description, the terms "first / second / third" are only used to distinguish similar objects and do not represent a specific order for the objects. It is understood that "first / second / third" can be interchanged with a specific order or sequence when allowed, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0025] Embodiments of the present application provide a control method for a double cross-flow air conditioner. Referring to Figure 1 as shown, the method includes the following steps:

[0026] Step 101: Obtain a first temperature when the lower blower of the double cross-flow air conditioner is closed.

[0027] Wherein, the first temperature indicates the temperature in the room where the double cross-flow air conditioner is located.

[0028] It is understood that the execution subject of this embodiment is the above-mentioned double cross-flow air conditioner, which has functions such as data processing, data communication, and program operation. Usually, the operation of each component in the double cross-flow air conditioner can be driven by a core controller. Therefore, the execution subject of this embodiment can also be the core controller in the above-mentioned double cross-flow air conditioner, and the core controller can be a processor.

[0029] In the embodiments of the present application, the first temperature can be detected by an indoor temperature sensor and sent to the double cross-flow air conditioner. The indoor temperature sensor can be set on the main housing of the double cross-flow air conditioner, that is, on the indoor unit of the air conditioner, or on the indoor side wire controller of the air conditioner. The present application does not specifically limit the installation position of the indoor temperature sensor.

[0030] In the embodiments of the present application, in the cooling mode, the double cross-flow air conditioner includes an upper blower for upper air outlet and a lower blower for lower air outlet. After starting up and running, the upper blower and the lower blower are turned on and working at the same time. When the lower blower of the double cross-flow air conditioner is turned off, the current ambient temperature in the room where the double cross-flow air conditioner is located is detected and obtained.

[0031] Step 102: When the first temperature is lower than the first threshold temperature, control the speed of the upper fan of the double cross-flow air conditioner to increase to the first speed in the first manner.

[0032] Wherein, the first manner includes increasing with the passage of time.

[0033] In the embodiment of the present application, the first speed refers to the target speed of the double cross-flow air conditioner. The target speed of the double cross-flow air conditioner is not greater than the maximum speed limit of the motor of the air conditioner.

[0034] In the embodiment of the present application, the first threshold temperature is a preset temperature. When the lower fan of the double cross-flow air conditioner is turned off and the detected indoor temperature is lower than the first threshold temperature, control the speed of the upper fan of the double cross-flow air conditioner to increase with the passage of time until it is increased to the target speed corresponding to the first speed.

[0035] A control method for a double cross-flow air conditioner provided by an embodiment of the present application includes: when the lower fan of the double cross-flow air conditioner is turned off, obtain the first temperature; the first temperature indicates the temperature in the room where the double cross-flow air conditioner is located; when the first temperature is lower than the first threshold temperature, control the speed of the upper fan of the double cross-flow air conditioner to increase to the first speed in the first manner; the first manner includes increasing with the passage of time; it solves the problem in the related art that when controlling the lower fan to turn off, directly increasing the upper fan to a fixed speed causes a sudden change in the air supply speed and is likely to generate a relatively large noise. Based on the current ambient temperature, the present application controls the speed of the upper fan to gradually increase to the target speed over time, realizing a dynamic gradual change process of controlling the speed of the upper fan according to the actual load demand, and preventing sudden noise changes caused by sudden changes in the wind speed.

[0036] In some embodiments of the present application, the first manner in step 102 includes: increasing step by step at a constant speed with the passage of time, increasing step by step at a variable speed with the passage of time.

[0037] In the embodiment of the present application, increasing step by step with time means increasing with the passage of time, maintaining the corresponding speed for a period of time, continuing to increase and maintaining the corresponding speed for a period of time, and so on until the target speed is reached; increasing at a constant speed means that the change rate of the fan speed remains unchanged with the passage of time; increasing at a variable speed means that the change rate of the fan speed changes with the passage of time, including the change rate of the fan speed gradually decreasing. At this time, with the passage of time, the fan speed continues to increase, and the increase amount of the fan speed gradually decreases.

[0038] In the embodiments of the present application, when the first temperature is lower than the first threshold temperature, the rotation speed of the upper blower of the double cross-flow air conditioner is controlled to increase step by step and uniformly over time, that is, the rotation speed of the upper blower of the double cross-flow air conditioner is first increased to a certain rotation speed, maintained at this rotation speed for a period of time, then continued to increase to another rotation speed with the same rotation speed increment, and maintained at the other rotation speed for a period of time, and so on, until it is increased to the target rotation speed.

[0039] In the embodiments of the present application, when the first temperature is lower than the first threshold temperature, the rotation speed of the upper blower of the double cross-flow air conditioner is controlled to increase step by step and variably decelerate over time, that is, the rotation speed of the upper blower of the double cross-flow air conditioner is first increased to a certain rotation speed, maintained at this rotation speed for a period of time, then continued to increase to another rotation speed with a smaller rotation speed increment, and maintained at the other rotation speed for a period of time, and so on, until it is increased to the target rotation speed.

[0040] In the embodiments of the present application, the rotation speed of the upper blower is controlled in steps according to the detected indoor temperature, and then the air supply speed is controlled to gradually change, preventing sudden changes in noise caused by sudden changes in the air supply speed, effectively reducing noise, and improving the user experience.

[0041] In some embodiments of the present application, in step 101, when the lower blower of the double cross-flow air conditioner is closed, the first temperature can be obtained through the following steps:

[0042] When the lower blower is closed, control the upper blower to operate at the current rotation speed for the first time;

[0043] Obtain the temperature in the room after the upper blower has operated for the first time to obtain the first temperature.

[0044] In the embodiments of the present application, the first time is a preset time. When the lower blower is closed, after controlling the upper blower to operate at the current rotation speed for the first time, then detect the indoor temperature to obtain the first temperature. The first temperature in the embodiments of the present application is the temperature obtained after the upper blower has been stably operating for a period of time, so as to obtain the actual load demand of the room after the lower blower is closed.

[0045] In some embodiments of the present application, in step 102, when the first temperature is lower than the first threshold temperature, controlling the rotation speed of the upper blower of the double cross-flow air conditioner to be increased to the first rotation speed according to the first method can be achieved through the following steps:

[0046] According to the first temperature, determine the rotation speed increment of the upper blower; the rotation speed increment indicates the increase ratio of the current rotation speed;

[0047] According to the rotation speed increment of the upper blower and the current rotation speed of the upper blower, determine the first rotation speed.

[0048] In the embodiments of the present application, the rotational speed increment refers to the proportion by which the upper fan increases based on its current rotational speed. The current rotational speed of the upper fan refers to the rotational speed when the upper fan is running at the time of detecting the first temperature. The first rotational speed refers to the target rotational speed that the upper fan should reach.

[0049] In the embodiments of the present application, according to the detected current indoor temperature, the increase proportion of the current rotational speed of the upper fan is determined to obtain the rotational speed increment, and according to the obtained rotational speed increment of the upper fan and the current rotational speed of the upper fan, the target rotational speed of the upper fan is determined.

[0050] In the embodiments of the present application, according to the rotational speed increase proportion corresponding to the rotational speed increment of the upper fan and the current rotational speed of the upper fan, to determine the target rotational speed, the following formula can be used for calculation:

[0051] Vt = V1 * (1 + Sn) (1)

[0052] Wherein, Vt is the target rotational speed of the upper fan, with the unit of revolutions per second (r / s);

[0053] V1 is the current rotational speed of the upper fan, with the unit of revolutions per second (r / s);

[0054] Sn is the value corresponding to the rotational speed increase proportion of the upper fan, that is, the rotational speed increment △S, with the unit of %.

[0055] Wherein, the target rotational speed Vt of the upper fan is not greater than the maximum rotational speed limit Vmax set by the motor of the double cross-flow air conditioner. If Vt exceeds the maximum rotational speed limit, then control is performed to make Vt = Vmax.

[0056] In the embodiments of the present application, the limiting conditions of Vt include: in one case, before controlling the upper fan to increase its rotational speed step by step, the current ambient temperature is detected. According to the current ambient temperature, the temperature difference range n into which the current ambient temperature difference △T falls and the △S corresponding to this temperature difference range n are calculated, and the target rotational speed Vn of the upper fan is confirmed. When controlling the upper fan to increase its rotational speed step by step until reaching this target rotational speed, stop further increasing, that is, maintain operation at the current target rotational speed Vn; in another case, during the process of controlling the upper fan to increase its rotational speed step by step, the current ambient temperature is detected, and the current ambient temperature difference △T is calculated. As △T drops from the temperature difference range n to the next temperature difference range n + 1, the △S corresponding to this temperature difference range n + 1 is determined, and the target rotational speed Vn + 1 of the upper fan is confirmed. When controlling the upper fan to increase its rotational speed step by step until reaching this target rotational speed, stop further increasing, that is, maintain operation at the current target rotational speed Vn + 1; in the third case, during the process of controlling the upper fan to increase its rotational speed step by step, control the target rotational speed Vt of the upper fan not to be greater than the maximum rotational speed limit Vmax set by the motor. If the maximum rotational speed Vmax has been reached, control the upper fan to stop further increasing after reaching the maximum rotational speed Vmax, that is, maintain operation with the current Vmax as the target rotational speed.

[0057] In the embodiments of the present application, based on the rotational speed increment corresponding to the first temperature, the target rotational speed is determined, and the process of the actual load demand changing dynamically with time is comprehensively considered from multiple dimensions such as time, temperature, and rotational speed increment. It is realized that according to the actual load demand and the corresponding rotational speed increment, as time progresses, the rotational speed of the upper fan is dynamically adjusted to gradually increase, and the cooling capacity is output step by step to meet the dynamic cooling capacity demand.

[0058] Among them, in some embodiments of the present application, to determine the rotational speed increment of the upper fan according to the first temperature, it can be achieved through the following steps:

[0059] Obtain the temperature difference between the first temperature and the second threshold temperature;

[0060] Determine the temperature difference range to which the temperature difference belongs;

[0061] Determine that the rotational speed increment corresponding to the temperature difference range is the rotational speed increment.

[0062] In the embodiments of the present application, different temperature difference ranges can correspond to different wind speeds / gear positions. Exemplarily, the range with a larger value corresponding to the temperature difference range can correspond to a high wind speed, and the range with a smaller value corresponding to the temperature difference range can correspond to a low wind speed.

[0063] In the embodiments of the present application, the second threshold temperature refers to a preset temperature. The temperature difference range is a preset range, and each temperature difference range corresponds to a rotational speed increment respectively. The rotational speed increments corresponding to different temperature difference ranges can be the same or different, and are specifically set according to actual needs. The present application does not limit this.

[0064] In the embodiments of the present application, the temperature difference is calculated based on the detected indoor temperature and the preset second threshold temperature, and further, according to the temperature difference range into which the temperature difference falls, the rotational speed increment corresponding to the temperature difference range is determined as the rotational speed increment of the upper fan. When the rotational speed increments corresponding to each temperature difference range are the same, the rotational speed of the upper fan of the double cross-flow air conditioner is controlled to increase step by step and uniformly over time; when the rotational speed increments corresponding to each temperature difference range are different, the rotational speed of the upper fan of the double cross-flow air conditioner is controlled to increase step by step and variably over time.

[0065] In the embodiments of the present application, based on the temperature difference between the current ambient temperature and the set temperature, and according to the temperature difference range into which the temperature difference falls, the rotational speed increment corresponding to the temperature difference range is determined. Furthermore, the rotational speed of the upper fan can be controlled to increase by this rotational speed increment based on the current rotational speed. Since different temperature difference ranges correspond to different rotational speed increments, the lower the value of the temperature difference range, the greater the change in the increase ratio of the wind speed, that is, different rotational speeds are increased within each temperature difference range, effectively reducing noise.

[0066] Among them, in some embodiments of the present application, the temperature difference range corresponds one-to-one with the rotational speed increment; the smaller the temperature difference, the smaller the rotational speed increment.

[0067] In the embodiments of the present application, there is a one-to-one correspondence between the temperature difference range and the rotational speed increment. This correspondence relationship is customized according to different air-conditioning systems corresponding to the application of the double cross-flow air conditioner, and is related to factors such as the optimal parameters and models of the air-conditioning system. The embodiments of the present application do not make specific limitations on this.

[0068] In the embodiments of the present application, the correspondence relationship between the temperature difference range and the rotational speed increment can be: the smaller the temperature difference value in the temperature difference range, the smaller the rotational speed increment corresponding to the temperature difference range. In the cooling mode, as the air conditioner operates, the indoor temperature gradually decreases, the temperature difference between the detected indoor temperature and the preset indoor temperature gradually decreases, the heat load demand of the room also gradually decreases, and the corresponding air volume compensation demand gradually decreases. At this time, the rotational speed increment corresponding to the temperature difference range gradually decreases. At this time, according to the detected indoor temperature, the rotational speed of the upper blower of the double cross-flow air conditioner is controlled to increase step by step with time, that is, the rotational speed of the upper blower of the double cross-flow air conditioner is first increased to a rotational speed, maintained at this rotational speed for a period of time, and then continued to increase to another rotational speed with a smaller rotational speed increment, and maintained at another rotational speed for a period of time, and so on, until the target rotational speed is reached. In this way, after the actual temperature difference between the current ambient temperature and the set temperature falls into different temperature difference ranges, in different temperature difference ranges, the upper blower is controlled to increase different rotational speeds. When the value corresponding to the temperature difference range is lower, the rotational speed increase ratio of the upper blower is controlled to be smaller, avoiding the problem of high / medium / low wind noise corresponding to the temperature difference range caused by increasing a fixed rotational speed of the upper blower in each temperature difference range where the wind gear is located.

[0069] In some embodiments of the present application, step 101 can also be implemented through the following steps:

[0070] When the lower blower of the double cross-flow air conditioner is closed, obtain the second temperature; the second temperature indicates the temperature of the surface of the copper tube of the indoor heat exchanger of the double cross-flow air conditioner;

[0071] When the second temperature is less than the third threshold temperature, control the upper blower of the double cross-flow air conditioner to maintain the current rotational speed.

[0072] In the embodiments of the present application, the second temperature can be detected by an indoor temperature sensor and sent to the double cross-flow air conditioner. The indoor temperature sensor can be set on the surface of the copper tube of the indoor heat exchanger of the double cross-flow air conditioner. The embodiments of the present application do not make specific limitations on the setting position of the indoor temperature sensor.

[0073] In the embodiment of the present application, in the heating mode, after the double cross-flow air conditioner is turned on and operates, the upper fan and the lower fan are turned on and operate simultaneously. When the lower fan of the double cross-flow air conditioner is turned off, the temperature of the surface of the copper tube of the indoor heat exchanger of the double cross-flow air conditioner is detected and obtained.

[0074] In the embodiment of the present application, the third threshold temperature is a preset temperature. When the lower fan of the double cross-flow air conditioner is turned off and the detected indoor temperature is less than the third threshold temperature, the upper fan of the double cross-flow air conditioner is controlled to maintain the current rotation speed. In the heating mode, when performing anti-cold wind control, after turning off the lower fan, the upper fan is controlled to continue running at the current rotation speed to avoid increasing the device power consumption due to additional control.

[0075] Next, taking the actual control scenario of the double cross-flow up-and-down air outlet air conditioner as an example, with reference to Figure 2 As shown, the embodiment of the present application provides a double cross-flow air conditioner 2, which includes a body housing 201, an upper fan assembly 202, a lower fan assembly 203, and an evaporator 204; wherein,

[0076] The upper fan assembly 202 includes an upper fan 205, an upper air deflector 206, and an upper stepping motor 207; the upper stepping motor 207 controls the opening of the upper air deflector 206, the upper air outlet 212 is opened, and the upper fan 205 is controlled to be turned on in a linked manner. The air inlet 211 is communicated with the upper air outlet 212 through the upper fan 205 to form an upper air outlet channel 213; after the upper fan 205 is turned on, the upper cross-flow impeller is controlled to rotate, driving the indoor air to be sent out from the upper air outlet 212 after passing through the upper air outlet channel 213 from the air inlet 211. At the same time, the upper stepping motor 207 controls the upper air deflector 206 to adjust the angle to control the upper air outlet angle and the upper air supply distance. In addition, when the upper air deflector 206 is controlled to be closed, the upper fan 205 is controlled to be closed in a linked manner.

[0077] The lower fan assembly 203 includes a lower fan 208, a lower air deflector 209, and a lower stepping motor 210; the lower stepping motor 210 controls the opening of the lower air deflector 209, the lower air outlet 214 is opened, and the lower fan 208 is controlled to be turned on in a linked manner. The air inlet 211 is communicated with the lower air outlet 214 through the lower fan 208 to form a lower air outlet channel 215; after the lower fan 208 is turned on, the lower cross-flow impeller is controlled to rotate, driving the indoor air to be sent out from the lower air outlet 214 after passing through the lower air outlet channel 215 from the air inlet 211. At the same time, the lower stepping motor 210 controls the lower air deflector 209 to adjust the angle to control the lower air outlet angle and the lower air supply distance. In addition, when the lower air deflector 209 is controlled to be closed, the lower fan 208 is controlled to be closed in a linked manner.

[0078] The evaporator 204 is arranged inside the upper air outlet channel 213 and the lower air outlet channel 215; under the cooling condition, the evaporator 204 is the evaporation end, which absorbs heat for the refrigerant, and the upper fan 205 or the lower fan 208 drives the indoor air from the air inlet 211 through the evaporator 204, so that the air exchanges heat with the refrigerant in the pipe, and the cooled air is sent out from the upper air outlet 212 or the lower air outlet 214; under the heating condition, the evaporator 204 is the condensation end, which dissipates heat for the refrigerant, and the upper fan 205 or the lower fan 208 drives the indoor air from the air inlet 211 through the evaporator 204, so that the air exchanges heat with the refrigerant in the pipe, and the heated air is sent out from the upper air outlet 212 or the lower air outlet 214.

[0079] Below, taking the actual scenario of double-flow air conditioner control as an example, refer to Figure 3 As shown, the embodiment of the present application provides a control method for a double cross-flow air conditioner, which is applied to a double cross-flow upper and lower air outlet air conditioner, and is specifically described as follows:

[0080] Step 301: Select a control mode for the lower air guide strip.

[0081] There are three control modes for the lower air guide strip of the dual cross-flow air conditioner: normally open mode (ON), normally closed mode (OF), and automatic mode (AUTO). Users can select the control mode through the remote control device.

[0082] Step 302: If the control mode of the lower air guide strip is selected as the normally open mode, the lower air guide strip is controlled to be open.

[0083] When the normally open mode (ON) is selected, the dual cross-flow air conditioner is controlled to start and operate, the lower air guide strip is controlled to open, and the lower fan is controlled to start, driving the lower cross-flow fan wheel to rotate, so that the indoor air is sent out from the lower air outlet corresponding to the lower air guide strip after passing through the lower fan from the air inlet.

[0084] Step 303: If the control mode of the lower air guide strip is selected as the normally closed mode, the lower air guide strip is controlled to be closed.

[0085] When the normally closed mode (OF) is selected, the dual cross-flow air conditioner is controlled to start and run, the lower air guide strip is controlled to be closed, and the lower fan is controlled to be closed in linkage, the upper air guide strip is controlled to be opened, and the upper fan is controlled to be opened in linkage, driving the upper cross-flow fan wheel to rotate, so that the indoor air is delivered from the air inlet through the upper fan and then from the upper air outlet corresponding to the upper air guide strip.

[0086] Step 304: If the control mode of the lower air guide strip is selected as the automatic mode, the lower air guide strip is automatically controlled to be closed according to the indoor air temperature.

[0087] When the automatic mode (AUTO) is selected, the opening and closing of the lower air guide strip and the lower fan are automatically controlled according to the current ambient temperature, and the speed of the upper fan is dynamically adjusted based on temperature adaptation on the basis of the current speed to compensate for the air volume loss and performance loss when one fan is turned off.

[0088] Step 305: Select cooling mode.

[0089] Step 306: Select normal automatic mode.

[0090] The automatic mode includes two sub-modes, one is the normal automatic mode and the other is the intelligent automatic mode. When the normal automatic mode is selected, the current ambient temperature is initially determined based on the detected indoor air temperature (T1), and the opening or closing of the air guide strip and the fan speed are automatically adjusted based on T1.

[0091] Step 307: Detect T1.

[0092] Step 308 , determine whether T1 satisfies T1 ≥ Ta. If so, proceed to step 309 , otherwise, return to step 307 .

[0093] Step 309: Control the lower air guide strip to enter the normally open mode.

[0094] When the detected T1 is greater than or equal to the first threshold value (Ta), the upper air guide strip is controlled to open at the default angle AngUP, the lower air guide strip is controlled to open at the default angle AngDown, and the upper and lower fans are controlled to open in linkage to control the upper and lower fans to run simultaneously.

[0095] Step 310: Calculate the target rotation speeds of the upper and lower fans according to the wind speed.

[0096] According to the current windshield, the speed corresponding to the windshield is obtained as the target speed of the upper and lower fans, and the target speed cannot exceed the fan speed range [Speed1min, Speed1max]. If it exceeds the fan speed range, the maximum or minimum value of the fan speed range is used as the target speed.

[0097] Step 311: Control the upper fan and the lower fan to operate at the target speed.

[0098] Step 312, determine whether T1 satisfies T1<Tb, if yes, go to step 313, otherwise return to step 307.

[0099] Step 313: Control the lower air guide strip to enter the normally closed mode.

[0100] When the detected T1 is less than the second threshold value (Tb), the lower air guide strip is controlled to be closed, and the lower fan is controlled to stop running, and the process goes to step 314, and the speed of the upper fan is controlled to be adjusted according to the current state.

[0101] Step 314: Control the upper fan to maintain the original speed for Tm time.

[0102] After the lower air guide strip is closed, the upper fan is controlled to run at the current speed for the set time Tm.

[0103] Step 315: Calculate the temperature difference ΔT based on the indoor air temperature and the indoor set temperature.

[0104] If the lower air guide strip and the lower motor are closed, the timing starts from when the lower air guide strip is closed. After the upper fan runs at the current speed for the set time Tm, the difference between the current ambient temperature and the set temperature is determined to be △T=T1-Ts.

[0105] Step 316: Determine the ratio ΔS of the upper fan speed increase according to the temperature difference ΔT.

[0106] According to △T, the ratio △S of the speed increase of the upper fan is determined, and then the speed increment △V of the upper fan is obtained. In the embodiment of the present application, according to the temperature difference interval in which △T falls, the ratio △S of the speed increase corresponding to the temperature difference interval is determined, which is as follows:

[0107] When △T falls into the temperature difference interval 1 [t1, t2], the corresponding △S satisfies: △S = S1;

[0108] When △T falls into the temperature difference interval 2 [t2, t3], the corresponding △S satisfies: △S = S2;

[0109] When △T falls into the temperature difference interval 3 [tn, tn+1], the corresponding △S satisfies: △S=S3;

[0110] By analogy, when △T falls into the temperature difference interval n

n,n+1

[0111] Among them, as the air conditioner operates, the detected current ambient temperature gradually approaches the indoor set temperature. At this time, △T gradually becomes smaller, indicating that the heat load demand for the room decreases and the demand for air volume compensation decreases. When △T is smaller, the determined Sn will also be correspondingly smaller. Exemplarily, the indoor set temperature is 20°C. When the detected current ambient temperature is 26°C, △T is calculated to be 6°C, and △T falls within the temperature difference range [5, 7]. The Sn corresponding to this temperature difference range is 15%. At this time, △S is determined to be 15%; if △T is 4°C, △T falls within the temperature difference range [3, 5], and the Sn corresponding to this temperature difference range is 10%. At this time, △S is determined to be 10%; if △T is 2°C, △T falls within the temperature difference range [1, 3], and the Sn corresponding to this temperature difference range is 5%; at this time, △S is determined to be 5%, and so on.

[0112] Step 317: Determine the target speed as Vt = V1 * (1 + Sn) according to the increased ratio △S of the upper fan.

[0113] According to the determined increased ratio △S of the upper fan, and determine the target speed Vt of the upper fan according to the above formula (1).

[0114] Step 318: Control the speed of the upper fan to increase step by step to the target speed.

[0115] When the speed of the upper fan is increased to the speed Vn corresponding to the temperature difference range n, keep running for a period of time Tn, and then continue to control the speed of the upper fan to increase to the speed Vn+1 corresponding to the temperature difference range n+1, and keep running for a period of time Tn+1, and so on, control the speed of the upper fan to increase step by step until the final target speed Vt is reached. During this period, the lengths of Tn and / or Tn+1 can be further adjusted to control the change time of the fan speed, so that the upper fan increases to the final target speed step by step at different change rates according to the actual demand.

[0116] Step 319: Select the intelligent automatic mode and enter step 307.

[0117] After selecting the intelligent automatic mode, perform an initial determination of the current ambient temperature according to the detected indoor air temperature (T1) and the indoor set temperature (Tset), that is, the target indoor temperature preset by the user, for automatically adjusting the opening or closing of the air deflector and the fan speed according to T1 and Tset.

[0118] Step 320: Determine whether T1 satisfies T1 - set ≥ Tc. If it is satisfied, enter step 309; otherwise, return to step 307.

[0119] When the detected difference between T1 and Tset is greater than or equal to the third threshold value (Tc), the upper and lower air guide strips are controlled to open, and the upper and lower fans are linked to open, and step 309 is entered to control the upper and lower fans to run simultaneously.

[0120] Step 321 , determine whether T1 satisfies T1 −Tset<Td. If so, proceed to step 313 , otherwise, return to step 307 .

[0121] When the detected difference between T1 and Tset is less than the fourth threshold value (Td), the lower air guide strip is controlled to be closed, and the lower fan is controlled to stop running, and the process goes to step 313 to control the fan speed to adjust according to the current state.

[0122] Step 322: Select heating mode.

[0123] Step 323: Detect T2.

[0124] Step 324 , determine whether T2 satisfies T2 ≥ Th1 , if yes, go to step 309 , otherwise return to step 323 .

[0125] When the detected temperature (T2) of the surface of the indoor heat exchanger copper tube is ≥ greater than or equal to the fifth threshold value (Th1), the upper and lower air guide strips are controlled to open according to the default angles AngUP and AngDown, and the upper and lower fans are controlled to open in linkage, and step 309 is entered to control the upper and lower fans to run simultaneously.

[0126] Step 325 , determine whether T2 satisfies T2<Th2 , if yes, go to step 326 , otherwise return to step 323 .

[0127] Step 326: Control the lower air guide strip to enter the normally closed mode.

[0128] Step 327, control the upper fan to maintain the original speed.

[0129] When the detected temperature (T2) of the copper tube surface of the indoor heat exchanger is less than the sixth threshold value (Th2), the air guide strip is controlled to be closed, the lower fan is controlled to be closed in linkage, and the upper fan is controlled to maintain the original speed. Since the lower air outlet is required to increase comfort during normal operation in the heating mode, the upper fan and the lower fan are controlled to run at the same time, that is, dual fans are operated. When performing cold wind prevention control in the heating mode, close the lower air guide strip, close the lower fan in linkage, and control the fan speed of the upper fan in the conventional cold wind prevention manner. There is no need to gradually adjust the upper fan speed to the target speed to avoid increasing equipment power consumption due to additional control.

[0130] In the embodiment of the present application, the current ambient temperature and the corresponding temperature difference range are detected to adjust the turning on or off of the lower blower. When the lower blower is turned off, according to the temperature difference range where the current ambient temperature is located, the rotational speed of the upper blower is automatically controlled to gradually increase step by step with time according to the rotational speed increment corresponding to the temperature difference range until the target rotational speed is reached, so as to meet the dynamically changing load requirements. In this way, it is realized to control the rotational speed of the blower to gradually increase according to the actual load requirements, and then control the wind speed to gradually change, avoiding noise caused by sudden changes in wind speed and improving user comfort.

[0131] An embodiment of the present application provides a control device 400 for a double cross-flow air conditioner. Referring to Figure 4 as shown, the control device 400 for the double cross-flow air conditioner includes: an acquisition unit 401 and a processing unit 402; wherein,

[0132] The acquisition unit 401 is configured to acquire a first temperature when the lower blower of the double cross-flow air conditioner is turned off; the first temperature indicates the temperature inside the room where the double cross-flow air conditioner is located.

[0133] The processing unit 402 is configured to control the rotational speed of the upper blower of the double cross-flow air conditioner to increase to a first rotational speed in a first manner when the first temperature is less than a first threshold temperature; the first manner includes increasing with the passage of time.

[0134] The processing unit 402 is configured to control the rotational speed of the upper blower of the double cross-flow air conditioner to increase to a first rotational speed in a first manner, where the first manner includes: increasing step by step at a constant speed with the passage of time, increasing step by step with variable speed with the passage of time.

[0135] The processing unit 402 is configured to control the upper blower to operate at the current rotational speed for a first period of time when the lower blower is turned off.

[0136] The acquisition unit 401 is configured to acquire the temperature inside the room after the upper blower operates for the first period of time to obtain a first temperature.

[0137] The processing unit 402 is configured to determine a rotational speed increment of the rotational speed of the upper blower according to the first temperature; the rotational speed increment indicates the increase ratio of the current rotational speed.

[0138] The processing unit 402 is configured to determine a first rotational speed according to the rotational speed increment of the upper blower and the current rotational speed of the upper blower.

[0139] The acquisition unit 401 is configured to acquire the temperature difference between the first temperature and a second threshold temperature.

[0140] The processing unit 402 is configured to determine the temperature difference range to which the temperature difference belongs.

[0141] The processing unit 402 is configured to determine that the rotational speed increment corresponding to the temperature difference range is the rotational speed increment.

[0142] A processing unit 402 is configured to determine that an increment of a rotational speed corresponding to a temperature difference range is a rotational speed increment, where the temperature difference range and the rotational speed increment are in one-to-one correspondence; the smaller the temperature difference, the smaller the rotational speed increment.

[0143] An acquisition unit 401 is configured to acquire a second temperature when a lower blower of the double cross-flow air conditioner is closed; the second temperature indicates the temperature of the surface of the copper tube of the indoor heat exchanger of the double cross-flow air conditioner.

[0144] The processing unit 402 is configured to control the upper blower of the double cross-flow air conditioner to maintain the current rotational speed when the second temperature is less than a third threshold temperature.

[0145] A control device for a double cross-flow air conditioner provided by an embodiment of the present application, through the acquisition unit 401, acquires a first temperature when the lower blower of the double cross-flow air conditioner is closed; the first temperature indicates the temperature of the room where the double cross-flow air conditioner is located; through the processing unit 402, when the first temperature is less than a first threshold temperature, the rotational speed of the upper blower of the double cross-flow air conditioner is controlled to increase to a first rotational speed according to a first manner; the first manner includes increasing with the passage of time. It solves the problem in the related art that when controlling the lower blower to close, directly increasing the upper blower to a fixed rotational speed causes a sudden change in the air supply speed and is likely to generate a large noise. The present application controls the rotational speed of the upper blower to gradually increase to the target rotational speed over time based on the current ambient temperature, realizing a dynamic gradual change process of controlling the rotational speed of the upper blower according to the actual load demand, and preventing sudden noise changes caused by sudden changes in the wind speed.

[0146] An embodiment of the present application provides a control device 500 for a double cross-flow air conditioner, referring to Figure 5 As shown, the control device 500 for a double cross-flow air conditioner includes: a memory 501, a processor 502, and a communication bus 503; where

[0147] The communication bus 503 is configured to implement a communication connection between the memory 501 and the processor 502;

[0148] The memory 501 is configured to store executable instructions.

[0149] The processor 502 is configured to execute the executable instructions stored in the memory 501 to implement the steps of the control method for the double cross-flow air conditioner as described above.

[0150] The processor may be an integrated circuit chip with signal processing capabilities, such as a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or any conventional processor, etc.

[0151] The control device of the double cross-flow air conditioner provided by the embodiment of the present application controls the rotation speed of the upper fan to gradually increase to the target speed over time based on the current ambient temperature, realizing the process of dynamically changing the rotation speed of the upper fan according to the actual load demand, and preventing the sudden change of noise caused by the sudden change of wind speed. It solves the problem in the related art that when the lower fan is controlled to close, the upper fan is directly increased to a fixed speed, resulting in a sudden change of the air supply wind speed and easily generating a large amount of noise.

[0152] It should be noted that the descriptions of the same steps and the same content in this embodiment and other embodiments can be referred to the descriptions in other embodiments, and will not be repeated here.

[0153] The embodiment of the present application provides a computer-readable storage medium, which stores one or more programs, and the one or more programs can be executed by one or more processors to implement as Figure 1 、 Figure 3 the implementation process in the control method of the double cross-flow air conditioner provided by the corresponding embodiment, which will not be repeated here.

[0154] The above computer storage medium / memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a ferromagnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM), etc.; it can also be various terminals including one or any combination of the above memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0155] It should be understood that the "one embodiment" or "an embodiment" or "an embodiment of the present application" or "the foregoing embodiment" or "some embodiments" or "some implementation manners" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the "in one embodiment" or "in an embodiment" or "an embodiment of the present application" or "the foregoing embodiment" or "some embodiments" or "some implementation manners" that appear throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the magnitudes of the serial numbers of the above processes do not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The serial numbers of the embodiments of the present application above are only for description and do not represent the advantages or disadvantages of the embodiments.

[0156] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the couplings, direct couplings, or communication connections between the various components shown or discussed can be through some interfaces, and the indirect couplings or communication connections of devices or units can be electrical, mechanical or other forms.

[0157] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units; they can be located in one place or distributed to multiple network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0158] In addition, in each embodiment of the present application, the various functional units can all be integrated in a processing unit, or each unit can be separately used as a unit, or two or more units can be integrated in a unit; the above integrated units can be implemented in the form of hardware, or in the form of hardware plus software functional units.

[0159] The methods disclosed in several method embodiments provided by the present application can be arbitrarily combined without conflict to obtain new method embodiments.

[0160] The features disclosed in several product embodiments provided by the present application can be arbitrarily combined without conflict to obtain new product embodiments.

[0161] The features disclosed in several method or device embodiments provided by this application can be combined arbitrarily without conflict to obtain new method embodiments or device embodiments.

[0162] Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps including the above method embodiments; and the foregoing storage medium includes: removable storage devices, read-only memory (ROM), magnetic disks, or optical discs, etc., all kinds of media that can store program codes.

[0163] Alternatively, if the above integrated units of this application are implemented in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of this application essentially or the part that contributes to the related technology can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of this application. And the foregoing storage medium includes: removable storage devices, ROM, magnetic disks, or optical discs, etc., all kinds of media that can store program codes.

[0164] It should be noted that the drawings in the embodiments of this application are only for illustrating the schematic positions of various components on the terminal device and do not represent the actual positions in the terminal device. The actual positions of each component or each area can be changed or offset according to the actual situation (for example, the structure of the terminal device). Moreover, the proportions of different parts in the terminal device in the figure do not represent the actual proportions.

[0165] The above is only the implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A control method for a double cross-flow air conditioner, characterized in that, the method includes: When the lower blower of the double cross-flow air conditioner is closed, obtain a first temperature; the first temperature indicates the temperature in the room where the double cross-flow air conditioner is located; When the first temperature is less than a first threshold temperature, control the rotational speed of the upper blower of the double cross-flow air conditioner to increase to a first rotational speed according to a first manner; the first manner includes increasing with the passage of time.

2. The method according to claim 1, characterized in that, the first manner includes: increasing stepwise and uniformly with the passage of time, increasing stepwise and variably with the passage of time.

3. The method according to claim 1, characterized in that, the step of obtaining the first temperature when the lower blower of the double cross-flow air conditioner is closed includes: When the lower blower is closed, control the upper blower to operate at the current rotational speed for a first time; Obtain the temperature in the room after the upper blower has operated for the first time to obtain the first temperature.

4. The method according to claim 1, characterized in that, the step of controlling the rotational speed of the upper blower of the double cross-flow air conditioner to increase to a first rotational speed according to a first manner when the first temperature is less than a first threshold temperature includes: Determine a rotational speed increment of the upper blower according to the first temperature; the rotational speed increment indicates the increase ratio of the current rotational speed; Determine the first rotational speed according to the rotational speed increment of the upper blower and the current rotational speed of the upper blower.

5. The method according to claim 4, characterized in that, the step of determining the rotational speed increment of the upper blower according to the first temperature includes: Obtain the temperature difference between the first temperature and a second threshold temperature; Determine the temperature difference interval to which the temperature difference belongs; Determine the increment of the rotational speed corresponding to the temperature difference interval as the rotational speed increment.

6. The method according to claim 5, characterized in that, the temperature difference interval corresponds one-to-one with the rotational speed increment; the smaller the temperature difference, the smaller the rotational speed increment.

7. The method according to claim 1, characterized in that, the method further includes: When the lower blower of the double cross-flow air conditioner is closed, obtain a second temperature; the second temperature indicates the temperature of the copper tube surface of the indoor heat exchanger of the double cross-flow air conditioner; When the second temperature is less than a third threshold temperature, control the upper blower of the double cross-flow air conditioner to maintain the current rotational speed.

8. A control device for a double cross-flow air conditioner, characterized in that, the device includes: An acquisition unit, configured to obtain a first temperature when the lower blower of the double cross-flow air conditioner is closed; the first temperature indicates the temperature in the room where the double cross-flow air conditioner is located; A processing unit, configured to control the rotational speed of the upper blower of the double cross-flow air conditioner to increase to a first rotational speed according to a first manner when the first temperature is less than a first threshold temperature; the first manner includes increasing with the passage of time.

9. A control device for a double cross-flow air conditioner, characterized in that, the device includes: A memory, configured to store executable instructions; A processor for executing executable instructions stored in the memory to implement the control method of the double cross-flow air conditioner according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that it stores executable instructions which, when executed, cause a processor to execute the control method of the double cross-flow air conditioner according to any one of claims 1 to 7.

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