Control method and controller of air conditioning equipment capable of blowing air up and down reversibly and air conditioning equipment

Abstract

The invention relates to the field of air conditioning equipment, in particular to a control method, a controller and air supply equipment of air conditioning equipment capable of discharging air in an up-down reversible mode, and the method comprises the steps that operation parameters of the air conditioning equipment are obtained in response to a refrigeration signal or a dehumidification signal of the air conditioning equipment; and according to the matching condition between the operation parameters and preset condensation detection conditions and / or frosting detection conditions, the operation state of the second draught fan is adjusted so as to inhibit condensation and / or defrosting. If the operation parameters are matched with the condensation detection conditions and / or the frosting detection conditions, it is proved that condensation and / or frosting occurs or is extremely prone to occurring, at the moment, the operation state of the second draught fan is adjusted, the temperature difference between the first air channel and the second air channel is relieved through the second draught fan, condensation is restrained through the second draught fan, and meanwhile the temperature difference between the first air channel and the second air channel is reduced through adjustment of the operation state of the second draught fan. And the temperature of the evaporator is increased, frosting is restrained, the refrigeration or dehumidification effect is guaranteed, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of air conditioning equipment, and more particularly, to a control method, a controller, and an air conditioning equipment with reversible up-and-down air outlet. Background Art

[0002] For air supply equipment such as air conditioners and air purifiers, they usually include two modes: cooling and heating, to cool or heat the space where they are located. In the cooling mode, there is a risk of condensation in the air duct of the air conditioner, and the evaporator is prone to frosting, which has a great negative impact on the life and cooling effect of the air conditioner, affecting the user experience. Summary of the Invention

[0003] The present application provides a control method, a controller, and an air conditioning equipment with reversible up-and-down air outlet, so as to at least solve the technical problems of easy condensation and frosting in the cooling mode.

[0004] According to the first aspect of the embodiments of the present application, a control method for an air conditioning equipment with reversible up-and-down air outlet is provided.

[0005] The air conditioning equipment includes an indoor unit, and the indoor unit includes a housing. A first air duct, a second air duct, a first connecting air duct, and a second connecting air duct are provided in the housing, where

[0006] The first air duct is provided with a first outer air outlet communicating with the indoor environment where the indoor unit is located and a first inner air outlet communicating with the first connecting air duct and the first air duct; the second air duct is provided with a second outer air outlet communicating with the indoor environment where the indoor unit is located and a second inner air outlet communicating with the second connecting air duct and the second air duct; the first outer air outlet is arranged at the upper part of the housing, and the second outer air outlet is arranged at the lower part of the housing.

[0007] A first fan and a first baffle are arranged on the first air duct. The first fan is provided with a first fan air inlet and a first fan air outlet. The first fan air outlet is connected to the first air duct, and the first fan air inlet and the first inner air outlet are communicated through the first connecting air duct; the first baffle can be controlled to block the first inner air outlet while opening the first fan air outlet or block the first fan air outlet while opening the first inner air outlet.

[0008] A second fan and a second baffle are arranged on the second air duct. The second fan is provided with a second fan air inlet and a second fan air outlet. The second fan air outlet is connected to the second air duct, and the second fan air inlet and the second inner air outlet are communicated through the second connecting air duct; the second baffle can be controlled to block the second inner air outlet while opening the second fan air outlet or block the second fan air outlet while opening the second inner air outlet.

[0009] When the air conditioning equipment is designed to operate in the cooling or dehumidifying mode, with the first external air outlet as the indoor environment air outlet and the second external air outlet as the indoor environment air inlet, and the first fan is started, the method includes:

[0010] In response to the cooling signal or dehumidifying signal of the air conditioning equipment, obtain the operating parameters of the air conditioning equipment;

[0011] According to the matching situation between the operating parameters and the preset dew condensation detection conditions and / or frosting detection conditions, adjust the operating state of the second fan to suppress dew condensation and / or defrosting.

[0012] Optionally, the adjusting the operating state of the second fan according to the matching situation between the operating parameters and the preset dew condensation detection conditions and / or frosting detection conditions includes:

[0013] Compare the first temperature and the second temperature in the operating parameters with the dew condensation detection conditions to obtain the matching situation between the operating parameters and the dew condensation detection conditions, where the first temperature is the temperature in the first air duct and the second temperature is the temperature in the second air duct;

[0014] When the operating parameters match the dew condensation detection conditions, start the second fan.

[0015] Optionally, the comparing the first temperature and the second temperature in the operating parameters with the dew condensation detection conditions to obtain the matching situation between the operating parameters and the dew condensation detection conditions includes:

[0016] Calculate the difference between the first temperature and the second temperature to obtain the first temperature difference;

[0017] Compare the first temperature difference with the first temperature threshold in the dew condensation detection conditions. When the first temperature difference is greater than or equal to the first temperature threshold and the duration exceeds the first time threshold in the dew condensation detection conditions, determine that the operating parameters match the dew condensation detection conditions.

[0018] Optionally, before comparing the first temperature and the second temperature in the operating parameters with the dew condensation detection conditions, the method further includes:

[0019] Obtain the first indoor temperature when responding to the cooling signal or dehumidifying signal;

[0020] Obtain the second indoor temperature after the second time threshold has passed when responding to the cooling signal or dehumidifying signal;

[0021] When the difference between the first indoor temperature and the second indoor temperature is less than or equal to a preset second temperature threshold, perform the comparison of the first temperature and the second temperature in the operating parameters with the condensation detection condition.

[0022] Optionally, adjusting the operating state of the second fan according to the matching condition between the operating parameters and the preset condensation detection condition and / or frosting detection condition includes:

[0023] Compare the third temperature in the operating parameters with the frosting detection condition to obtain the matching condition between the operating parameters and the frosting detection condition, where the third temperature is the pipe temperature of the evaporator in the air conditioning device;

[0024] When the operating parameters match the frosting detection condition, start the second fan.

[0025] Optionally, comparing the third temperature in the operating parameters with the frosting detection condition to obtain the matching condition between the operating parameters and the frosting detection condition includes:

[0026] Judge whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration of the third temperature being less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition;

[0027] If so, determine that the operating parameters match the frosting detection condition.

[0028] Optionally, before judging whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition and whether the duration of the third temperature being less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition, the method further includes:

[0029] Judge whether the compressor operating frequency in the operating parameters exceeds the frequency threshold in the frosting detection condition;

[0030] When the compressor operating frequency exceeds the frequency threshold, perform the judgment of whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition and whether the duration of the third temperature being less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition.

[0031] According to the second aspect of the embodiments of the present application, a controller is provided, which adopts the above control method when controlling an air conditioning device.

[0032] According to the third aspect of the embodiments of the present application, an air conditioning device is provided, which applies the above control method or includes the above controller;

[0033] The air conditioning equipment includes a first air duct and a second air duct. The first air duct includes a first outer air outlet communicating with the outside of the air conditioning equipment and a first inner air outlet communicating with the internal space of the air conditioning equipment. A first fan and a first baffle are arranged in the first air duct, and the first baffle is designed to block the first inner air outlet or the air outlet of the first fan at different positions.

[0034] The second air duct includes a second outer air outlet communicating with the outside of the air conditioning equipment and a second inner air outlet communicating with the internal space of the air conditioning equipment. A second fan and a second baffle are arranged in the second air duct, and the second baffle is designed to block the second inner air outlet or the air outlet of the second fan at different positions.

[0035] When the air conditioning equipment is designed in the cooling or dehumidifying mode, the first outer air outlet is used as the outside air outlet, the second outer air outlet is used as the outside air inlet, and the first fan is started.

[0036] When the air conditioning equipment is designed in the heating mode, the second outer air outlet is used as the outside air outlet, the first outer air outlet is used as the outside air inlet, and the second fan is started.

[0037] Optionally, the first baffle is rotatably arranged in the first air duct. When the first baffle is in the first position, it blocks the air outlet of the first fan and opens the first inner air outlet. When the first baffle is in the second position, it blocks the first inner air outlet and opens the air outlet of the first fan.

[0038] The second baffle is rotatably arranged in the second air duct. When the second baffle is in the third position, it blocks the air outlet of the second fan and opens the second inner air outlet. When the second baffle is in the fourth position, it blocks the air outlet of the second fan and opens the second inner air outlet.

[0039] Optionally, the air conditioning equipment is a floor-standing unit.

[0040] In the embodiment of the present application, since in the cooling mode, the first fan is in the starting state and the second outer air outlet is the outside air inlet, it is easy to have a temperature difference between the first air duct and the second air duct, resulting in condensation. At the same time, when the first fan is started and the second fan is not started, it is also easy to cause frosting on the evaporator. After the cooling signal or dehumidifying signal is triggered, if the operating parameters match the condensation detection condition and / or frosting detection condition, it proves that condensation and / or frosting has occurred or is extremely likely to occur. At this time, the operating state of the second fan is adjusted, so that the second fan relieves the temperature difference between the first air duct and the second air duct, inhibits condensation. Similarly, the adjustment of the operating state of the second fan also makes the evaporator temperature rise, inhibits frosting, ensures the cooling or dehumidifying effect, and improves the user experience. Description of the Drawings

[0041] Figure 1 is a schematic diagram of an air conditioning device in an embodiment.

[0042] Figure 2 is a gas flow diagram of the air conditioning device in a heating mode in an embodiment.

[0043] Figure 3 is a gas flow diagram of the air conditioning device in a cooling or dehumidifying mode in an embodiment.

[0044] Figure 4 is a flowchart of a control method for an air conditioning device with reversible up and down air outlets in an embodiment.

[0045] Reference numeral description: 1, first air duct; 11, first outer air outlet; 12, first inner air outlet; 2, second air duct; 21, second outer air outlet; 22, second inner air outlet; 3, first fan; 4, second fan; 5, first baffle; 6, second baffle. Detailed Embodiment

[0046] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0047] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of this application described here can be implemented in an order different from those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0048] According to an embodiment of this application, an embodiment of a control method for an air conditioning device with reversible up and down air outlets is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that here.

[0049] It should be noted that the control method provided in this embodiment is applied to an air conditioning device as shown in Figure 1 the following. The air conditioning device includes an indoor unit, and the indoor unit includes a housing. Inside the housing, there are a first air duct 1, a second air duct 2, a first connecting air duct, and a second connecting air duct. The first air duct 1 is provided with a first outer air outlet 11 communicating with the indoor environment where the indoor unit is located and a first inner air outlet 12 communicating the first connecting air duct and the first air duct 1; the second air duct 2 is provided with a second outer air outlet 21 communicating with the indoor environment where the indoor unit is located and a second inner air outlet 22 communicating the second connecting air duct and the second air duct 2; the first outer air outlet 11 is arranged at the upper part of the housing, and the second outer air outlet 21 is arranged at the lower part of the housing;

[0050] A first fan 3 and a first baffle 5 are arranged on the first air duct 1. The first fan 3 is provided with a first fan air inlet and a first fan air outlet. The first fan air outlet is connected to the first air duct 1, and the first fan air inlet and the first inner air outlet 12 are communicated through the first connecting air duct; the first baffle 5 can be controlled to block the first inner air outlet 12 while opening the first fan air outlet or block the first fan air outlet while opening the first inner air outlet 12;

[0051] A second fan 4 and a second baffle 6 are arranged on the second air duct 2. The second fan 4 is provided with a second fan air inlet and a second fan air outlet. The second fan air outlet is connected to the second air duct 2, and the second fan air inlet and the second inner air outlet 22 are communicated through the second connecting air duct; the second baffle 6 can be controlled to block the second inner air outlet 22 while opening the second fan air outlet or block the second fan air outlet while opening the second inner air outlet 22;

[0052] When the air conditioning device is designed in the cooling or dehumidifying mode, the first outer air outlet 11 is used as the indoor environment air outlet, the second outer air outlet 21 is used as the indoor environment air inlet, and the first fan 3 is started.

[0053] For the sake of easy understanding, in one embodiment, the first air duct 1 and the second air duct 2 are arranged one above the other in the air supply device, and the air supply mode is upper air supply for cooling or dehumidifying and lower air supply for heating. Specifically, as shown in the following table:

[0054] First baffle Second baffle First fan Second fan Air outlet mode Refrigeration / dehumidification Turn on Turn off Turn on Turn off Upward air outlet Heating Turn off Turn on Turn off Turn on Downward air outlet

[0055] Such as Figure 2As shown in the figure, in the heating mode, the first external air outlet 11 is the external air inlet. After the air flow enters the first air duct 1 from the first external air outlet 11, it successively passes through the first internal air outlet 12 - the second fan air inlet - the second fan air outlet - the second external air outlet 21.

[0056] As Figure 3 shown in the figure, in the cooling mode or the dehumidifying mode, the second external air outlet 21 is the external air inlet. After the air flow enters the second air duct 2 from the second external air outlet 21, it successively passes through the second internal air outlet 22 - the first fan air inlet - the first fan air outlet - the first external air outlet 11.

[0057] It should be noted that in one embodiment, both the first air duct and the second air duct are formed by using pipes. That is to say, by installing pipes inside the housing, air ducts for the flow of air are formed inside the pipes. For the first connecting air duct and the second connecting air duct, they can be formed by using pipes or can be formed inside the housing depending on the air flow relationship between the housing and other structures. For example, a heat exchanger is provided inside the housing, and the heat exchanger is located between the internal air outlet and the corresponding fan. After the air flow flows out from the internal air outlet, it enters the heat exchanger, and then flows from the outlet of the heat exchanger to the corresponding fan. Due to the setting of the heat exchanger, a connecting air duct is formed between the internal air outlet and the corresponding fan, which is the first connecting air duct and the second connecting air duct.

[0058] As Figure 3 shown in the figure, the method includes the following steps:

[0059] S101, in response to the cooling signal or the dehumidifying signal of the air conditioning device, obtain the operating parameters of the air conditioning device.

[0060] In one embodiment, after the air conditioning device receives a cooling instruction, it generates a cooling signal or regards the cooling instruction as a cooling signal. That is to say, when the user controls the air conditioning device to cool, a cooling instruction will be generated, and the air conditioning device directly responds with the cooling instruction as a cooling signal. In addition, if the user sets a timing to start the air conditioning device for cooling, when the air conditioning device is cooling, the timing instruction or the start of cooling at this time can also be used as a cooling signal for response. The response to the dehumidifying signal is the same as that of the cooling signal and will not be elaborated here.

[0061] In one embodiment, when the air conditioning device is cooling or dehumidifying, various types of operating parameters are generated. Among them, the operating parameters such as parameters indicating whether the fan starts, the fan speed, the temperature inside the air duct, etc. The specific parameters of the operating parameters are not limited in this embodiment. It should be noted that the temperature-related parameters can be obtained through the temperature sensor on the air conditioning device, or the temperature-related parameters can be obtained by adding sensors.

[0062] S102. Adjust the operating state of the second fan 4 according to the matching condition between the operating parameters and the preset condensation detection condition and / or frosting detection condition, so as to inhibit condensation and / or defrost.

[0063] In one embodiment, there are preset condensation detection conditions and frosting detection conditions. Among them, the condensation detection condition is used to judge whether condensation occurs or whether it is easy to generate condensation; the frosting detection condition is used to judge whether frosting occurs or whether it is easy to generate frosting. For example, when the temperature difference between the first air duct 1 and the second air duct 2 is large, condensation may easily occur.

[0064] When at least one parameter in the operating parameters matches the condensation detection condition, the operating state of the second fan 4 is adjusted to inhibit the condensation phenomenon. Similarly, the frosting phenomenon is inhibited. Among them, inhibition includes preventing the generation of condensation and / or frosting phenomena and alleviating the existing condensation and / or frosting.

[0065] Through the above steps, in the refrigeration mode, since the first fan 3 is in the starting state and the second outer air outlet 21 is the outside air inlet, it is easy to have a temperature difference between the first air duct 1 and the second air duct 2, resulting in condensation. At the same time, when the first fan 3 starts and the second fan 4 does not start, it is also easy to cause frosting on the evaporator. After the refrigeration signal or dehumidification signal is triggered, if the operating parameters match the condensation detection condition and / or frosting detection condition, it proves that condensation and / or frosting has occurred or is extremely likely to occur. At this time, the operating state of the second fan 4 is adjusted, so that the second fan 4 alleviates the temperature difference between the first air duct 1 and the second air duct 2, inhibits condensation. Similarly, the adjustment of the operating state of the second fan 4 also makes the evaporator warm up, inhibits frosting, ensures the refrigeration or dehumidification effect, and improves the user experience.

[0066] In another embodiment of the present application, the adjusting the operating state of the second fan 4 according to the matching condition between the operating parameters and the preset condensation detection condition and / or frosting detection condition includes:

[0067] Compare the first temperature and the second temperature in the operating parameters with the condensation detection condition to obtain the matching condition between the operating parameters and the condensation detection condition, where the first temperature is the temperature in the first air duct 1, and the second temperature is the temperature in the second air duct 2;

[0068] When the operating parameters match the condensation detection condition, start the second fan 4.

[0069] In one embodiment, the first temperature is collected by the temperature sensor in the first air duct 1, and the second temperature is collected by the temperature sensor in the second air duct 2.

[0070] In one embodiment, comparing the first temperature and the second temperature with the condensation detection conditions may involve determining whether the first temperature and the second temperature are the same as the temperature in the condensation detection conditions, or determining whether the first temperature and the second temperature are within the temperature range in the condensation detection conditions. Alternatively, after performing an operation on the first temperature and the second temperature, the result is compared with the temperature value in the condensation detection conditions. Here, the operation can be addition, subtraction, etc., and this embodiment does not make specific limitations on this.

[0071] Through the above steps, using the temperatures of the first air duct 1 and the second air duct 2 to determine whether condensation occurs in the air duct helps improve the accuracy of the determination. At the same time, by controlling the second fan 4 to start to suppress the condensation phenomenon, the control means is simple and helps save computing resources.

[0072] In another embodiment of the present application, the comparing the first temperature and the second temperature in the operating parameters with the condensation detection conditions to obtain the matching situation between the operating parameters and the condensation detection conditions includes:

[0073] S301, calculating the difference between the first temperature and the second temperature to obtain the first temperature difference.

[0074] In one embodiment, the first temperature difference is equal to the first temperature minus the second temperature. In another embodiment, it can be the first temperature minus the second temperature, or the second temperature minus the first temperature, and then taking the absolute value to ensure that the first temperature difference is positive.

[0075] S302, comparing the first temperature difference with the first temperature threshold in the condensation detection conditions. When the first temperature difference is greater than or equal to the first temperature threshold and the duration exceeds the first time threshold in the condensation detection conditions, it is determined that the operating parameters match the condensation detection conditions.

[0076] In one embodiment, the condensation detection conditions include a first temperature threshold. When the first temperature difference is greater than or equal to the first temperature threshold, it proves that the temperature difference between the first air duct 1 and the second air duct 2 is large and condensation is likely to occur. At this time, determining that the operating parameters match the condensation detection conditions helps to suppress the condensation phenomenon in a timely manner.

[0077] In addition, the condensation detection conditions also include a first time threshold. Only when the duration that the first temperature difference is greater than or equal to the first temperature threshold exceeds the first time threshold, it is determined that the operating parameters match the condensation detection conditions, which helps reduce the false alarm rate.

[0078] In another embodiment of the present application, before comparing the first temperature and the second temperature in the operating parameters with the condensation detection conditions, the method further includes:

[0079] S401, obtain the first indoor temperature when responding to the refrigeration signal or the dehumidification signal.

[0080] In one embodiment, before calculating the difference between the first temperature and the second temperature, obtain the first indoor temperature. Wherein, the first indoor temperature is the temperature in the space where the air conditioning equipment is located when starting refrigeration or dehumidification. Specifically, the first indoor temperature can be collected by the room temperature temperature sensor on the air conditioning equipment, or can be collected by the installed temperature sensor.

[0081] S402, obtain the second indoor temperature after a second time threshold when responding to the refrigeration signal or the dehumidification signal.

[0082] In one embodiment, after the second time threshold, obtain the second indoor temperature. The obtaining method of the second indoor temperature is the same as that of the first indoor temperature, and will not be elaborated here. The second indoor temperature refers to the temperature in the space where the air conditioning equipment is located.

[0083] S403, when the difference between the first indoor temperature and the second indoor temperature is less than or equal to a preset second temperature threshold, perform the comparison of the first temperature and the second temperature in the operating parameters with the condensation detection condition.

[0084] In one embodiment, the difference between the first indoor temperature and the second indoor temperature needs to be a positive value. Therefore, the absolute value can be taken as the difference after taking the difference.

[0085] In one embodiment, when the difference is less than or equal to the second temperature threshold, it proves that the change in the indoor temperature is small, indicating that the humidity in the air duct is high and condensation is likely to occur.

[0086] Through the above steps, first judge whether the probability of condensation in the air duct is large according to the change of the room temperature, and then use the first temperature, the second temperature and the condensation detection condition to judge whether condensation needs to be inhibited, which helps to reduce the false alarm rate and save computing resources.

[0087] In another embodiment of the present application, the adjusting the operating state of the second fan 4 according to the matching situation between the operating parameters and the preset condensation detection condition and / or frosting detection condition includes:

[0088] Compare the third temperature in the operating parameters with the frosting detection condition to obtain the matching situation between the operating parameters and the frosting detection condition, wherein the third temperature is the pipe temperature of the evaporator in the air conditioning equipment;

[0089] When the operating parameters match the frosting detection condition, start the second fan 4.

[0090] By the above steps, taking the pipe temperature of the evaporator as the detection object is convenient and fast, facilitating efficient determination of whether defrosting is required and improving the timeliness of defrosting.

[0091] In another embodiment of the present application, comparing the third temperature in the operating parameters with the frosting detection condition to obtain the matching situation between the operating parameters and the frosting detection condition includes:

[0092] Judging whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration for which the third temperature is less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition;

[0093] If so, determine that the operating parameters match the frosting detection condition.

[0094] By the above steps, comparing the magnitudes of temperature values is easy to reduce the computational complexity, and the third temperature threshold helps to reduce the false alarm rate.

[0095] In another embodiment of the present application, before judging whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration for which the third temperature is less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition, the method further includes:

[0096] Judging whether the compressor operating frequency in the operating parameters exceeds the frequency threshold in the frosting detection condition;

[0097] When the compressor operating frequency exceeds the frequency threshold, execute the judgment of whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration for which the third temperature is less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition.

[0098] For example, in one embodiment, the frequency threshold is 60 Hz. When it is greater than 60 Hz, it proves that the compressor operating frequency is high and it is easy to frost. By setting the frequency limit, it helps to improve the accuracy of frosting judgment and reduce the false alarm rate.

[0099] In another embodiment of the present application, when the first temperature difference is less than the preset first reference threshold, control the second fan 4 to turn off.

[0100] When the third temperature is greater than the preset second reference threshold and the compressor operating frequency is less than the frequency threshold, control the second fan 4 to turn off.

[0101] This embodiment also provides a controller that adopts the above control method when controlling the air conditioning equipment.

[0102] This embodiment also provides an air conditioning device, such as Figure 1 shown, which applies the above-described control method or includes the above-described controller;

[0103] The air conditioning device includes a first air duct 1 and a second air duct 2. The first air duct 1 includes a first outer air outlet 11 communicating with the outside of the air conditioning device and a first inner air outlet 12 communicating with the internal space of the air conditioning device. A first fan 3 and a first baffle 5 are provided in the first air duct 1. The first baffle 5 is designed to block the first inner air outlet 12 or the air outlet of the first fan 3 at different positions.

[0104] The second air duct 2 includes a second outer air outlet 21 communicating with the outside of the air conditioning device and a second inner air outlet 22 communicating with the internal space of the air conditioning device. A second fan 4 and a second baffle 6 are provided in the second air duct 2. The second baffle 6 is designed to block the second inner air outlet 22 or the air outlet of the second fan 4 at different positions.

[0105] When the air conditioning device is designed in the cooling or dehumidifying mode, the first outer air outlet 11 is used as the outside air outlet, the second outer air outlet 21 is used as the outside air inlet, and the first fan 3 is started.

[0106] When the air conditioning device is designed in the heating mode, the second outer air outlet is used as the outside air outlet, the first outer air outlet is used as the outside air inlet, and the second fan is started.

[0107] In another embodiment of the present application, the first baffle 5 is rotatably provided in the first air duct 1. When the first baffle 5 is in the first position, it blocks the air outlet of the first fan 3 and opens the first inner air outlet 12. When the first baffle 5 is in the second position, it blocks the first inner air outlet 12 and opens the air outlet of the first fan 3.

[0108] The second baffle 6 is rotatably provided in the second air duct 2. When the second baffle 6 is in the third position, it blocks the air outlet of the second fan 4 and opens the second inner air outlet 22. When the second baffle 6 is in the fourth position, it blocks the air outlet of the second fan 4 and opens the second inner air outlet 22.

[0109] Specifically, the air conditioning device is a floor-standing unit.

[0110] The serial numbers of the above embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0111] In the above embodiments of the present application, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0112] In several embodiments provided by the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of units or modules can be in electrical or other forms.

[0113] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0114] In addition, in each embodiment of the present application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0115] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The foregoing storage medium includes: various media such as USB flash drives, read-only memories (ROMs), random access memories (RAMs), mobile hard disks, magnetic disks or optical discs that can store program codes.

[0116] The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A control method for an air conditioning device with reversible up and down air output, characterized in that, The air conditioning device includes an indoor unit, and the indoor unit includes a housing. A first air duct, a second air duct, a first connecting air duct, and a second connecting air duct are provided inside the housing, where the first air duct is provided with a first outer air outlet communicating with the indoor environment where the indoor unit is located and a first inner air outlet communicating with the first connecting air duct and the first air duct; the second air duct is provided with a second outer air outlet communicating with the indoor environment where the indoor unit is located and a second inner air outlet communicating with the second connecting air duct and the second air duct; the first outer air outlet is arranged at the upper part of the housing, and the second outer air outlet is arranged at the lower part of the housing; a first fan and a first baffle are arranged on the first air duct. The first fan is provided with a first fan air inlet and a first fan air outlet. The first fan air outlet is connected to the first air duct. The first fan air inlet and the first inner air outlet are communicated through the first connecting air duct; the first baffle can be controlled to block the first inner air outlet while opening the first fan air outlet or block the first fan air outlet while opening the first inner air outlet; a second fan and a second baffle are arranged on the second air duct. The second fan is provided with a second fan air inlet and a second fan air outlet. The second fan air outlet is connected to the second air duct. The second fan air inlet and the second inner air outlet are communicated through the second connecting air duct; the second baffle can be controlled to block the second inner air outlet while opening the second fan air outlet or block the second fan air outlet while opening the second inner air outlet; when the air conditioning device is designed in the cooling or dehumidifying mode, using the first outer air outlet as the indoor environment air outlet and the second outer air outlet as the indoor environment air inlet, and the first fan is started, the method includes: responding to the cooling signal or dehumidifying signal of the air conditioning device, and acquiring the operating parameters of the air conditioning device; adjusting the operating state of the second fan according to the matching situation between the operating parameters and the preset dew condensation detection condition and / or frosting detection condition to suppress dew condensation and / or defrosting.

2. The control method of the air conditioning equipment with reversible up and down air output according to claim 1, characterized in that, The adjusting the operating state of the second fan according to the matching situation between the operating parameters and the preset dew condensation detection condition and / or frosting detection condition includes: comparing the first temperature and the second temperature in the operating parameters with the dew condensation detection condition to obtain the matching situation between the operating parameters and the dew condensation detection condition, where the first temperature is the temperature in the first air duct, and the second temperature is the temperature in the second air duct; starting the second fan when the operating parameters match the dew condensation detection condition.

3. The control method of the air conditioning equipment with reversible up and down air output according to claim 2, characterized in that, The comparing the first temperature and the second temperature in the operating parameters with the dew condensation detection condition to obtain the matching situation between the operating parameters and the dew condensation detection condition includes: calculating the difference between the first temperature and the second temperature to obtain a first temperature difference; Compare the first temperature difference with the first temperature threshold in the condensation detection condition. When the first temperature difference is greater than or equal to the first temperature threshold and the duration exceeds the first time threshold in the condensation detection condition, it is determined that the operating parameters match the condensation detection condition.

4. The control method of the air conditioning equipment with reversible up and down air outlet according to claim 2, characterized in that, Before comparing the first temperature and the second temperature in the operating parameters with the condensation detection condition, the method further includes: Obtain the first indoor temperature when responding to the refrigeration signal or the dehumidification signal; Obtain the second indoor temperature after a second time threshold when responding to the refrigeration signal or the dehumidification signal; When the difference between the first indoor temperature and the second indoor temperature is less than or equal to a preset second temperature threshold, perform the comparison of the first temperature and the second temperature in the operating parameters with the condensation detection condition.

5. The control method of the air conditioning equipment with reversible up and down air output according to claim 1, characterized in that, Adjusting the operating state of the second fan according to the matching situation between the operating parameters and the preset condensation detection condition and / or frosting detection condition includes: Compare the third temperature in the operating parameters with the frosting detection condition to obtain the matching situation between the operating parameters and the frosting detection condition, where the third temperature is the pipe temperature of the evaporator in the air conditioning device; When the operating parameters match the frosting detection condition, start the second fan.

6. The control method of the air conditioning equipment with reversible up and down air outlet according to claim 5, characterized in that, The comparison of the third temperature in the operating parameters with the frosting detection condition to obtain the matching situation between the operating parameters and the frosting detection condition includes: Judge whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration for which the third temperature is less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition; If so, determine that the operating parameters match the frosting detection condition.

7. The control method of the air-conditioning equipment with reversible up-and-down air outlet according to claim 6, characterized in that, Before judging whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration for which the third temperature is less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition, the method further includes: Judge whether the compressor operating frequency in the operating parameters exceeds the frequency threshold in the frosting detection condition; When the compressor operating frequency exceeds the frequency threshold, perform the judgment of whether the third temperature is less than or equal to the third temperature threshold in the frosting detection condition, and whether the duration for which the third temperature is less than or equal to the third temperature threshold exceeds the third time threshold in the frosting detection condition.

8. A controller, characterized in that, When controlling the air conditioning device, adopt the control method according to any one of claims 1-7.

9. An air conditioning device, characterized in that, Apply the control method according to any one of claims 1-7 or include the controller according to claim 8; The air conditioning device includes a first air duct and a second air duct. The first air duct includes a first outer air outlet communicating with the outside of the air conditioning device and a first inner air outlet communicating with the internal space of the air conditioning device; a first fan and a first baffle are arranged in the first air duct, and the first baffle is designed to block the first inner air outlet or the air outlet of the first fan at different positions; The second air duct includes a second outer air outlet communicating with the outside of the air conditioning device and a second inner air outlet communicating with the internal space of the air conditioning device; a second fan and a second baffle are arranged in the second air duct, and the second baffle is designed to block the second inner air outlet or the air outlet of the second fan at different positions; When the air conditioning device is designed in the cooling or dehumidifying mode, the first outer air outlet is used as the outside air outlet, the second outer air outlet is used as the outside air inlet, and the first fan is started; When the air conditioning device is designed in the heating mode, the second outer air outlet is used as the outside air outlet, the first outer air outlet is used as the outside air inlet, and the second fan is started.

10. The air-conditioning equipment according to claim 9, characterized in that, The first baffle is rotatably arranged in the first air duct. When the first baffle is in the first position, it blocks the air outlet of the first fan and opens the first inner air outlet; when the first baffle is in the second position, it blocks the first inner air outlet and opens the air outlet of the first fan; The second baffle is rotatably arranged in the second air duct. When the second baffle is in the third position, it blocks the air outlet of the second fan and opens the second inner air outlet; when the second baffle is in the fourth position, it blocks the air outlet of the second fan and opens the second inner air outlet.

11. The air conditioning device according to claim 9, characterized in that, The air conditioning device is a floor-standing unit.

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