Air conditioner, control method and control device for air conditioner

Abstract

The application provides an air conditioner, a control method and a control device of the air conditioner. The air conditioner comprises an indoor heat exchanger and an outdoor heat exchanger, the indoor heat exchanger comprises a first heat exchange component and a second heat exchange component, and the outdoor heat exchanger is communicated with a refrigerant branch before an outlet end thereof; an inlet end of the first heat exchange component is connected to an electronic expansion valve through an indoor total inlet pipe, and an inlet end of the second heat exchange component is selectively connected to the indoor total inlet pipe or the refrigerant branch through a three-way valve. The air conditioner provided by the application can realize the functions of constant temperature and dehumidification.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and more particularly to air conditioners, air conditioner control methods, and control devices. Background Technology

[0002] In the related technology of air conditioning, during cooling, the refrigerant enters the evaporator through the outdoor condenser, then undergoes throttling and enters the evaporator main inlet, then absorbs heat through evaporation, and collects at the evaporator main outlet before returning to the compressor, thus repeating the cycle. During heating, the high-temperature and high-pressure refrigerant goes directly from the compressor to the indoor side, enters the evaporator through the indoor evaporator main outlet pipe, then condenses and dissipates heat, and collects at the evaporator main inlet pipe, then undergoes throttling and enters the outdoor condenser, and after heat exchange in the condenser, enters the compressor, thus repeating the cycle.

[0003] However, in the dehumidification process of air conditioners in related technologies, the evaporator is required to pre-cool the air to achieve dehumidification. Therefore, the cooling capacity generated by the evaporator usually affects the indoor ambient temperature, resulting in a continuous decrease in the indoor ambient temperature during dehumidification mode. This makes it impossible to guarantee the stability of the indoor temperature during dehumidification mode, resulting in a poor user experience and an inability to adjust the indoor temperature to a suitable comfortable temperature. Summary of the Invention

[0004] This invention provides an air conditioner, an air conditioner control method, and a control device to overcome the deficiencies in the prior art and achieve the following technical effects: ensuring that the indoor environment is in a constant temperature environment when the air conditioner is dehumidifying, that is, achieving the constant temperature dehumidification function.

[0005] An air conditioner according to a first aspect of the present invention includes:

[0006] An indoor heat exchanger and an outdoor heat exchanger, wherein the indoor heat exchanger includes a first heat exchange component and a second heat exchange component, and the outdoor heat exchanger is connected to a refrigerant branch before its outlet end.

[0007] The inlet end of the first heat exchange component is connected to the electronic expansion valve via the indoor main inlet pipe, and the inlet end of the second heat exchange component can be selectively connected to the indoor main inlet pipe or the refrigerant branch via a three-way valve.

[0008] According to one embodiment of the present invention, the refrigerant branch is connected to the middle position of the outdoor heat exchanger, and a regulating valve is provided on the refrigerant branch.

[0009] According to one embodiment of the present invention, the first heat exchange component is located above the second heat exchange component.

[0010] According to one embodiment of the present invention, the first heat exchange assembly includes a first heat exchange plate and a second heat exchange plate connected in parallel, the second heat exchange assembly includes a third heat exchange plate, and the first heat exchange plate, the second heat exchange plate and the third heat exchange plate are sequentially spliced ​​together.

[0011] According to a second aspect embodiment of the present invention, a control method for an air conditioner based on the first aspect embodiment of the present invention includes:

[0012] Upon receiving a signal to control the air conditioner to enter the constant temperature and dehumidification mode, the three-way valve is connected to the refrigerant branch to enter the constant temperature and dehumidification mode, and the indoor ambient temperature is obtained.

[0013] In the constant temperature and dehumidification mode, execution logic is generated based on the indoor ambient temperature and the target ambient temperature, and the operating parameters of the air conditioner are adjusted according to the execution logic.

[0014] According to an embodiment of the present invention, the step of generating execution logic based on the indoor ambient temperature and the target ambient temperature, and adjusting the operating parameters of the air conditioner according to the execution logic in the constant temperature dehumidification mode, specifically includes:

[0015] Obtain the pre-operation mode of the air conditioner before entering the constant temperature and dehumidification mode, and calculate the comparison result between the indoor ambient temperature and the target ambient temperature;

[0016] Based on the aforementioned pre-operation mode and the comparison result, the opening degree of the regulating valve on the refrigerant branch of the air conditioner is adjusted.

[0017] According to an embodiment of the present invention, the step of adjusting the opening degree of the regulating valve on the refrigerant branch of the air conditioner based on the pre-operation mode and the comparison result specifically includes:

[0018] If the indoor ambient temperature is lower than the target ambient temperature and the pre-cooling mode is cooling mode, then the opening of the regulating valve is increased.

[0019] If the indoor ambient temperature is greater than the target ambient temperature and the pre-operation mode is cooling mode, then the opening of the regulating valve is reduced.

[0020] According to an embodiment of the present invention, the step of adjusting the opening degree of the regulating valve on the refrigerant branch of the air conditioner based on the pre-operation mode and the comparison result specifically includes:

[0021] If the indoor ambient temperature is lower than the target ambient temperature and the pre-heating mode is heating mode, then the opening of the regulating valve is reduced.

[0022] If the indoor ambient temperature is greater than the target ambient temperature and the pre-heating mode is heating mode, then the opening of the regulating valve is increased.

[0023] According to one embodiment of the present invention, in the step of adjusting the opening of the regulating valve on the refrigerant branch of the air conditioner according to the pre-operation mode and the comparison result, the opening adjustment change value of the regulating valve is determined according to the temperature difference between the indoor ambient temperature and the target ambient temperature, and the opening adjustment change value is positively correlated with the temperature difference.

[0024] According to one embodiment of the present invention, the air conditioner control method further includes:

[0025] Upon receiving a signal to control the air conditioner to enter heating mode, cooling mode, or defrost mode, the three-way valve is controlled to connect to the indoor main inlet pipe.

[0026] A control device for an air conditioner based on the first aspect of the present invention, according to a third aspect embodiment of the present invention, includes:

[0027] The first control module is used to receive a signal that controls the air conditioner to enter the constant temperature and dehumidification mode, and then control the three-way valve to connect to the refrigerant branch to enter the constant temperature and dehumidification mode, and obtain the indoor ambient temperature.

[0028] The second control module is used to generate execution logic based on the indoor ambient temperature and the target ambient temperature in the constant temperature and dehumidification mode, and to adjust the operating parameters of the air conditioner according to the execution logic.

[0029] This invention provides an air conditioner that, by leading a branch of refrigerant from the outdoor heat exchanger to a second heat exchange component, allows the second heat exchange component to condense and dissipate heat in dehumidification mode to neutralize the cooling generated by the first heat exchange component during dehumidification. Thus, on one hand, the first heat exchange component pre-cools and condenses the saturated, high-humidity gas in the indoor environment, thereby achieving dehumidification; on the other hand, the second heat exchange component heats the indoor environment. By adjusting the refrigerant flow rate and temperature within the second heat exchange component, the heat generated by the second heat exchange component can be balanced with the cooling generated by the first heat exchange component, thereby ensuring a constant temperature environment indoors. Therefore, the air conditioner of this invention can achieve constant temperature dehumidification. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a partial structural schematic diagram of the air conditioner provided by the present invention;

[0032] Figure 2 This is a flowchart illustrating the air conditioner control method provided by the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the air conditioner control device provided by the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention.

[0035] Figure label:

[0036] 11. First heat exchange plate; 12. Second heat exchange plate; 13. Third heat exchange plate; 14. Indoor main inlet pipe; 15. Indoor main outlet pipe; 2. Outdoor heat exchanger; 31. Refrigerant branch; 32. Three-way valve; 33. Regulating valve; 110. First control module; 120. Second control module. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0038] The present invention provides an air conditioner, which is described below with reference to the accompanying drawings.

[0039] like Figure 1 As shown, an air conditioner according to a first aspect embodiment of the present invention includes an indoor heat exchanger and an outdoor heat exchanger 2. The indoor heat exchanger includes a first heat exchange component and a second heat exchange component. The outdoor heat exchanger 2 is connected to a refrigerant branch 31 before its outlet end.

[0040] The inlet of the first heat exchange component is connected to the electronic expansion valve via the indoor main inlet pipe 14, and the inlet of the second heat exchange component can be selectively connected to the indoor main inlet pipe 14 or the refrigerant branch 31 via the three-way valve 32.

[0041] According to an embodiment of the present invention, the air conditioner operates on the following principle: When the air conditioner is in cooling mode, the indoor heat exchanger acts as an evaporator to cool the room, and the outdoor heat exchanger 2 acts as a condenser to condense and dissipate heat in the outdoor environment. At this time, the air conditioner obtains the indoor ambient humidity. When the indoor ambient humidity is too high, that is, when the indoor ambient humidity is greater than the target indoor humidity, the air conditioner needs to turn on the constant temperature dehumidification mode. At this time, the opening of the three-way valve 32 connected to the indoor main inlet pipe 14 is closed, and the opening of the three-way valve 32 connected to the refrigerant branch 31 is opened.

[0042] In the above-mentioned constant temperature dehumidification mode, the refrigerant flowing out from the electronic expansion valve enters the first heat exchange component directly through the indoor main inlet pipe 14. At this time, the refrigerant evaporates and absorbs heat in the first heat exchange component. Therefore, the saturated high humidity gas in the room will be pre-cooled and generate condensate when passing through the first heat exchange module. Then the condensate is discharged from the indoor unit, thereby achieving the dehumidification effect. In summary, the first heat exchange component can achieve the dehumidification function.

[0043] The medium-temperature refrigerant drawn from the outlet of the outdoor heat exchanger 2 (i.e., the condenser) passes through the refrigerant branch 31 and the three-way valve 32 before entering the second heat exchange component. At this time, the refrigerant in the second heat exchange component no longer absorbs heat through evaporation, but instead dissipates heat through condensation. Therefore, by adjusting the refrigerant flow rate and temperature in the second heat exchange component, the heat generated by the second heat exchange component can be balanced with the cooling capacity generated by the first heat exchange component, thereby ensuring that the indoor environment is at a constant temperature. In summary, the second heat exchange component can achieve the function of constant temperature.

[0044] In another embodiment, if the indoor humidity is low, that is, when the indoor humidity is less than or equal to the target indoor humidity, the air conditioner does not need to turn on the dehumidification function. At this time, the opening of the three-way valve 32 connected to the indoor main inlet pipe 14 is open, and the opening of the three-way valve 32 connected to the refrigerant branch 31 is closed. That is, the air conditioner is operating in the normal cooling mode. The refrigerant flowing out of the electronic expansion valve is divided into two paths. One path of refrigerant enters the first heat exchange component for evaporation and heat absorption, and the other path of refrigerant enters the second heat exchange component for evaporation and heat absorption through the three-way valve 32. It can be understood that both the first heat exchange component and the second heat exchange component play the role of evaporation and heat absorption in this embodiment to achieve the cooling function.

[0045] In summary, the air conditioner of this invention can achieve constant temperature and dehumidification functions.

[0046] In the related technology of air conditioning, during cooling, the refrigerant enters the evaporator through the outdoor condenser, then undergoes throttling and enters the evaporator main inlet, then absorbs heat through evaporation, and collects at the evaporator main outlet before returning to the compressor, thus repeating the cycle. During heating, the high-temperature and high-pressure refrigerant goes directly from the compressor to the indoor side, enters the evaporator through the indoor evaporator main outlet pipe, then condenses and dissipates heat, and collects at the evaporator main inlet pipe, then undergoes throttling and enters the outdoor condenser, and after heat exchange in the condenser, enters the compressor, thus repeating the cycle.

[0047] However, in the dehumidification process of air conditioners in related technologies, the evaporator is required to pre-cool the air to achieve dehumidification. Therefore, the cooling capacity generated by the evaporator usually affects the indoor ambient temperature, resulting in a continuous decrease in the indoor ambient temperature during dehumidification mode. This makes it impossible to guarantee the stability of the indoor temperature during dehumidification mode, resulting in a poor user experience and an inability to adjust the indoor temperature to a suitable comfortable temperature.

[0048] Therefore, in order to overcome the technical defects existing in the above-mentioned related technologies, the present invention provides an air conditioner that leads a refrigerant branch 31 from the outdoor heat exchanger 2 to the second heat exchange component. This allows the second heat exchange component to condense and dissipate heat in dehumidification mode to neutralize the cooling generated by the first heat exchange component during dehumidification. In this way, on the one hand, the first heat exchange component pre-cools and condenses the saturated high-humidity gas in the indoor environment, thereby achieving the dehumidification function. On the other hand, the second heat exchange component heats the indoor environment. By adjusting the refrigerant flow rate and temperature in the second heat exchange component, the heat generated by the second heat exchange component can be balanced with the cooling generated by the first heat exchange component, thereby ensuring a constant temperature environment indoors. Thus, the air conditioner of the present invention can achieve a constant temperature dehumidification function.

[0049] According to some embodiments of the present invention, the refrigerant branch 31 is connected to the middle position of the outdoor heat exchanger 2.

[0050] In this way, by connecting the inlet end of the refrigerant branch 31 to the middle position of the outdoor heat exchanger 2, the refrigerant flowing out of the outdoor heat exchanger 2 to the refrigerant branch 31 is at a medium temperature, which facilitates the rapid and efficient condensation and heat dissipation of the refrigerant in the second heat exchange component, ensuring the heating effect of the second heat exchange component.

[0051] like Figure 1 As shown, according to some embodiments of the present invention, a regulating valve 33 is provided on the refrigerant branch 31. In this way, by adjusting the opening degree of the regulating valve 33 on the refrigerant branch 31, the flow rate of the refrigerant entering the second heat exchange component can be adjusted, thereby adjusting the heating effect of the second heat exchange component. This facilitates the balance between the heating heat of the second heat exchange component and the dehumidification cooling capacity of the first heat exchange component, ensuring a constant temperature effect in the indoor environment under dehumidification mode.

[0052] like Figure 1 As shown, according to some embodiments of the present invention, the first heat exchange component is located above the second heat exchange component.

[0053] In this way, when the air conditioner performs constant temperature and dehumidification, the first heat exchanger module located at the top generates cold air by cooling, and the second heat exchanger module located at the bottom generates hot air by heating. Therefore, when the cold air located at the top sinks and meets the hot air located at the bottom, there is no risk of water blowing.

[0054] like Figure 1 As shown, according to some embodiments of the present invention, the first heat exchange assembly includes a first heat exchange plate 11 and a second heat exchange plate connected in parallel, and the second heat exchange assembly includes a third heat exchange plate 13, wherein the first heat exchange plate 11, the second heat exchange plate 12 and the third heat exchange plate 13 are sequentially spliced ​​and connected.

[0055] The inlet end of the first heat exchange plate 11 is connected to the first inlet pipe, the inlet end of the second heat exchange plate 12 is connected to the second inlet pipe, both the first and second inlet pipes are connected to the indoor main inlet pipe 14 and are connected in parallel, and the inlet end of the third heat exchanger is connected to the refrigerant branch 31 through a three-way valve 32. The outlet end of the first heat exchange plate 11 is connected to the first outlet pipe, the outlet end of the second heat exchange plate 12 is connected to the second outlet pipe, and the outlet end of the third heat exchanger is connected to the third outlet pipe. The first, second, and third outlet pipes are all connected in parallel and connected to the indoor main outlet pipe 15.

[0056] In this way, by setting two heat exchange plates connected in parallel within the first heat exchange module, the dehumidification effect of the air conditioner can be guaranteed and the dehumidification efficiency can be improved, thereby achieving strong dehumidification function under constant temperature.

[0057] It should be noted that the present invention does not impose a specific limit on the number of the above-mentioned heat exchange plates. The above embodiment is only one of the many embodiments of the present invention and does not constitute a specific limitation on the composition of the first heat exchange component and the second heat exchange component in the present invention.

[0058] According to some embodiments of the present invention, the air conditioner also includes a compressor, a four-way valve, and an electronic expansion valve.

[0059] The indoor heat exchanger, outdoor heat exchanger 2, compressor, four-way valve and electronic expansion valve are connected by refrigerant pipes. The indoor main inlet pipe 14 of the indoor heat exchanger is connected to the compressor through the four-way valve, and the indoor main outlet of the indoor heat exchanger is connected to the outdoor heat exchanger 2 through the electronic expansion valve.

[0060] The air conditioner control method, control device, and air conditioner proposed in this invention are described below with reference to the accompanying drawings. Before providing a detailed description of the embodiments of this invention, the overall application scenario is first described. The air conditioner control method, control device, electronic device, and computer-readable storage medium of this invention can be applied locally to the air conditioner, to cloud platforms in the Internet field, or to other types of cloud platforms in the Internet field, or to third-party devices. These third-party devices may include various types such as mobile phones, tablets, laptops, in-vehicle computers, and other smart terminals.

[0061] The following description uses a control method applicable to air conditioners as an example. It should be understood that the control method of this invention can also be applied to cloud platforms and third-party devices. It should be noted that the control method of this invention is implemented based on the structure of the air conditioner described above.

[0062] like Figure 2 As shown, an air conditioning control method according to a second aspect embodiment of the present invention includes:

[0063] Step S1: Upon receiving a signal to control the air conditioner to enter the constant temperature and dehumidification mode, the three-way valve 32 is connected to the refrigerant branch 31 to enter the constant temperature and dehumidification mode, and the indoor ambient temperature is obtained.

[0064] Step S2: In constant temperature and dehumidification mode, execution logic is generated based on indoor ambient temperature and target ambient temperature, and the operating parameters of the air conditioner are adjusted according to the execution logic.

[0065] According to the air conditioner control method of the present invention, its specific working principle is as follows: First, when the controller receives a signal to control the air conditioner to enter the constant temperature dehumidification mode, the controller controls the air conditioner to enter the constant temperature dehumidification mode. In the above-mentioned constant temperature dehumidification mode, the controller controls the three-way valve 32 to connect to the refrigerant branch 31. At this time, the refrigerant flowing out from the electronic expansion valve directly enters the first heat exchange component through the indoor main inlet pipe 14. At this time, the refrigerant evaporates and absorbs heat in the first heat exchange component. Therefore, the saturated high humidity gas in the room will be pre-cooled and generate condensate when passing through the first heat exchange module. Then the condensate is discharged from the indoor unit, thereby achieving the dehumidification effect. The medium-temperature refrigerant drawn from the outlet end of the outdoor heat exchanger 2 (i.e., the condenser) passes through the refrigerant branch 31 and the three-way valve 32 in sequence and enters the second heat exchange component. At this time, the refrigerant no longer evaporates and absorbs heat in the second heat exchange component, but condenses and dissipates heat.

[0066] Furthermore, the controller acquires the specific value of the indoor ambient temperature and compares it with the target ambient temperature. Based on the comparison result, it determines whether the current temperature is constant. If it is, there is no need to adjust the air conditioner's operating parameters. If not, the controller will adjust the air conditioner's operating parameters to maintain the indoor environment at a constant temperature. For example, by adjusting the opening of the regulating valve 33 on the refrigerant branch 31, the controller can adjust the amount of refrigerant entering the second heat exchange component, thereby regulating the heating capacity of the second heat exchange component. This allows the heat generated by the second heat exchange component to balance the cooling capacity generated by the first heat exchange component, thus ensuring a constant indoor temperature environment.

[0067] In summary, according to the air conditioner control method of the present invention, by connecting the three-way valve 32 to the refrigerant branch 31 to enter the constant temperature dehumidification mode, and comparing the indoor ambient temperature with the target ambient temperature in the constant temperature dehumidification mode, the air conditioner's operating parameters are adjusted based on the comparison result, such as adjusting the opening of the regulating valve 33 to adjust the refrigerant flow rate in the second heat exchange component, thereby ensuring that the indoor environment is always at a constant temperature under dehumidification, that is, realizing the constant temperature dehumidification function and improving the user experience.

[0068] It's understandable that when the air conditioner is in constant temperature and dehumidification mode, the second heat exchange component can condense and dissipate heat to neutralize the cooling output generated by the first heat exchange component during dehumidification. Thus, on one hand, the first heat exchange component pre-cools and condenses the saturated, high-humidity gas in the indoor environment, thereby achieving dehumidification; on the other hand, the second heat exchange component heats the indoor environment. By adjusting the refrigerant flow and temperature within the second heat exchange component, the heat generated by the second component can be balanced with the cooling output of the first heat exchange component, thus ensuring a constant indoor temperature.

[0069] According to some embodiments of the present invention, in constant temperature dehumidification mode, the steps of generating execution logic based on indoor ambient temperature and target ambient temperature, and adjusting the operating parameters of the air conditioner according to the execution logic, specifically include:

[0070] Obtain the pre-operation mode of the air conditioner before it enters the constant temperature and dehumidification mode, and calculate the comparison results between the indoor ambient temperature and the target ambient temperature.

[0071] Based on the pre-operation mode and comparison results, adjust the opening of the regulating valve 33 on the refrigerant branch 31 of the air conditioner.

[0072] It is understandable that the first and second heat exchange components play different roles depending on the pre-operating mode. For example, when the pre-operating mode is cooling mode, the first heat exchange component plays a dehumidifying role (i.e., pre-cooling dehumidification) and the second heat exchange component plays a heating role (i.e., constant temperature) in constant temperature dehumidification mode. However, when the pre-operating mode is heating mode, the first heat exchange component plays a heating role (i.e., constant temperature) and the second heat exchange component plays a dehumidifying role (i.e., pre-cooling dehumidification) in constant temperature dehumidification mode.

[0073] Therefore, the opening adjustment strategy of regulating valve 33 is different under different pre-operation modes, so as to accurately handle various air conditioning usage scenarios and ensure the constant temperature of the indoor environment.

[0074] In some specific embodiments of the present invention, the step of adjusting the opening degree of the regulating valve 33 on the refrigerant branch 31 of the air conditioner according to the pre-operation mode and the comparison result specifically includes:

[0075] If the indoor ambient temperature is lower than the target ambient temperature and the pre-cooling mode is set to cooling mode, then the opening of the control valve 33 will be increased.

[0076] If the indoor ambient temperature is higher than the target ambient temperature and the pre-cooling mode is set to cooling mode, the opening of the control valve 33 will be reduced.

[0077] In this embodiment, when the indoor ambient temperature is lower than the target ambient temperature and the pre-operation mode is cooling mode, it indicates that the heating heat generated by the second heat exchange component is insufficient to balance the cooling heat generated by the first heat exchange component, resulting in a decrease in the indoor ambient temperature relative to the target ambient temperature. Therefore, in order to increase the heating heat of the second heat exchange component, the controller controls the opening of the regulating valve 33 to increase the flow rate of the cooling coal in the second heat exchange component, thereby improving its heating effect and causing the indoor ambient temperature to gradually rise back to the target ambient temperature.

[0078] When the indoor ambient temperature is higher than the target ambient temperature, and the pre-cooling mode is set to cooling mode, it indicates that the heating heat generated by the second heat exchange component is too high, exceeding the cooling capacity generated by the first heat exchange component. This causes the indoor ambient temperature to rise relative to the target ambient temperature. Therefore, in order to reduce the heating heat of the second heat exchange component, the controller controls the opening of the regulating valve 33 to decrease, thereby reducing the flow rate of cooling coal in the second heat exchange component and reducing its heating effect, so that the indoor ambient temperature gradually drops back to the target ambient temperature.

[0079] In other specific embodiments of the present invention, the step of adjusting the opening degree of the regulating valve 33 on the refrigerant branch 31 of the air conditioner according to the pre-operation mode and the comparison result specifically includes:

[0080] If the indoor ambient temperature is lower than the target ambient temperature and the pre-heating mode is set to heating mode, then the opening of the control valve 33 will be reduced.

[0081] If the indoor ambient temperature is higher than the target ambient temperature and the pre-heating mode is set to heating mode, the opening of the control valve 33 will be increased.

[0082] In this embodiment, when the indoor ambient temperature is lower than the target ambient temperature and the pre-heating mode is heating mode, it indicates that the cooling capacity generated by the dehumidification of the second heat exchange component is too high, thus exceeding the heat generated by the heating of the first heat exchange component, resulting in a decrease in the indoor ambient temperature relative to the target ambient temperature. Therefore, in order to reduce the dehumidification cooling capacity of the second heat exchange component, the controller controls the opening of the regulating valve 33 to decrease, thereby reducing the flow rate of cold coal in the second heat exchange component, reducing its dehumidification effect, and causing the indoor ambient temperature to gradually rise back to the target ambient temperature.

[0083] When the indoor ambient temperature is higher than the target ambient temperature, and the pre-heating mode is heating mode, it means that the cooling capacity generated by the dehumidification of the second heat exchange component is insufficient to balance the heat generated by the heating of the first heat exchange component, resulting in an increase in the indoor ambient temperature relative to the target ambient temperature. Therefore, in order to increase the dehumidification cooling capacity of the second heat exchange component, the controller controls the opening of the regulating valve 33 to increase the flow rate of the cooling coal in the second heat exchange component, thereby improving its dehumidification effect and causing the indoor ambient temperature to gradually drop back to the target ambient temperature.

[0084] According to some embodiments of the present invention, in the step of adjusting the opening of the regulating valve 33 on the refrigerant branch 31 of the air conditioner based on the pre-operation mode and comparison results, the opening adjustment change value of the regulating valve 33 is determined based on the temperature difference between the indoor ambient temperature and the target ambient temperature, and the opening adjustment change value is positively correlated with the temperature difference.

[0085] According to some embodiments of the present invention, the air conditioning control method further includes:

[0086] If a signal is received to control the air conditioner to enter heating mode, cooling mode, or defrost mode, the three-way valve 32 is connected to the indoor main inlet pipe 14.

[0087] In this way, the opening of the three-way valve 32 connected to the indoor main inlet pipe 14 is open, and the opening of the three-way valve 32 connected to the refrigerant branch 31 is closed. That is, in the normal heating mode, cooling mode or defrosting mode of the air conditioner, the refrigerant flowing out of the electronic expansion valve is divided into two paths. One path of refrigerant enters the first heat exchange component, and the other path of refrigerant enters the second heat exchange component through the three-way valve 32. It can be understood that the first heat exchange component and the second heat exchange component play the same role in this embodiment to achieve the cooling, heating or defrosting function.

[0088] The control device for an air conditioner provided by the present invention will be described below. The control device for an air conditioner described below can be referred to in correspondence with the control method for an air conditioner described above.

[0089] like Figure 3 As shown, the air conditioner control device according to a third aspect embodiment of the present invention includes:

[0090] The first control module 110 is used to receive a signal that controls the air conditioner to enter the constant temperature and dehumidification mode, and then control the three-way valve 32 to connect to the refrigerant branch 31 to enter the constant temperature and dehumidification mode, and obtain the indoor ambient temperature.

[0091] The second control module 120 is used to generate execution logic based on the indoor ambient temperature and the target ambient temperature in constant temperature and dehumidification mode, and to adjust the working parameters of the air conditioner according to the execution logic.

[0092] According to the air conditioner control device of the present invention, the three-way valve 32 is connected to the refrigerant branch 31 to enter the constant temperature dehumidification mode. In the constant temperature dehumidification mode, the indoor ambient temperature and the target ambient temperature are compared, and the operating parameters of the air conditioner are adjusted based on the comparison result. For example, the opening of the regulating valve 33 is adjusted to adjust the refrigerant flow in the second heat exchange component, thereby ensuring that the indoor environment is always at a constant temperature under dehumidification, that is, realizing the constant temperature dehumidification function and improving the user experience.

[0093] Figure 4 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 4 As shown, the electronic device may include a processor 810, a communication interface 820, a memory 830, and a communication bus 840. The processor 810, communication interface 820, and memory 830 communicate with each other via the communication bus 840. The processor 810 can call logic instructions in the memory 830 to execute an air conditioner control method. This method includes: upon receiving a signal to control the air conditioner to enter a constant temperature and dehumidification mode, controlling the three-way valve 32 to connect to the refrigerant branch 31 to enter the constant temperature and dehumidification mode, and acquiring the indoor ambient temperature; in the constant temperature and dehumidification mode, generating execution logic based on the indoor ambient temperature and the target ambient temperature, and adjusting the air conditioner's operating parameters according to the execution logic.

[0094] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0095] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute an air conditioner control method. The method includes: receiving a signal to control the air conditioner to enter a constant temperature and dehumidification mode, controlling the three-way valve 32 to connect to the refrigerant branch 31 to enter the constant temperature and dehumidification mode, and acquiring the indoor ambient temperature; in the constant temperature and dehumidification mode, generating execution logic based on the indoor ambient temperature and the target ambient temperature, and adjusting the operating parameters of the air conditioner according to the execution logic.

[0096] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements a control method for an air conditioner. The method includes: upon receiving a signal to control the air conditioner to enter a constant temperature and dehumidification mode, controlling a three-way valve 32 to connect to a refrigerant branch 31 to enter the constant temperature and dehumidification mode, and acquiring the indoor ambient temperature; in the constant temperature and dehumidification mode, generating execution logic based on the indoor ambient temperature and a target ambient temperature, and adjusting the operating parameters of the air conditioner according to the execution logic.

[0097] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0098] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air conditioner characterized by comprising: include: An indoor heat exchanger and an outdoor heat exchanger, wherein the indoor heat exchanger includes a first heat exchange component and a second heat exchange component, and the outdoor heat exchanger is connected to a refrigerant branch before its outlet end. The inlet of the first heat exchange component is connected to the electronic expansion valve via the indoor main inlet pipe, and the inlet of the second heat exchange component is selectively connected to the indoor main inlet pipe or the refrigerant branch via a three-way valve; the refrigerant branch is connected to the middle of the outdoor heat exchanger, and a regulating valve is provided on the refrigerant branch; the first heat exchange component is located above the second heat exchange component; the first heat exchange component includes a first heat exchange plate and a second heat exchange plate connected in parallel, the second heat exchange component includes a third heat exchange plate, and the first heat exchange plate, the second heat exchange plate, and the third heat exchange plate are sequentially spliced ​​together; In constant temperature and dehumidification mode, the refrigerant flowing out of the electronic expansion valve enters the first heat exchange component directly through the indoor main inlet pipe; in cooling mode, the refrigerant flowing out of the electronic expansion valve is divided into two paths, one path enters the first heat exchange component for evaporation and heat absorption, and the other path enters the second heat exchange component for evaporation and heat absorption through the three-way valve.

2. A control method for an air conditioner based on claim 1, characterized in that, include: Upon receiving a signal to control the air conditioner to enter the constant temperature and dehumidification mode, the three-way valve is connected to the refrigerant branch to enter the constant temperature and dehumidification mode, and the indoor ambient temperature is obtained. In the constant temperature and dehumidification mode, execution logic is generated based on the indoor ambient temperature and the target ambient temperature, and the operating parameters of the air conditioner are adjusted according to the execution logic. The step of generating execution logic based on the indoor ambient temperature and the target ambient temperature in the constant temperature and dehumidification mode, and adjusting the operating parameters of the air conditioner according to the execution logic, specifically includes: Obtain the pre-operation mode of the air conditioner before entering the constant temperature and dehumidification mode, and calculate the comparison result between the indoor ambient temperature and the target ambient temperature; Based on the aforementioned pre-operation mode and the comparison result, the opening degree of the regulating valve on the refrigerant branch of the air conditioner is adjusted.

3. The air conditioning control method according to claim 2, characterized in that, The step of adjusting the opening of the regulating valve on the refrigerant branch of the air conditioner according to the pre-operation mode and the comparison result specifically includes: If the indoor ambient temperature is lower than the target ambient temperature and the pre-operation mode is cooling mode, then the opening of the regulating valve is increased. If the indoor ambient temperature is greater than the target ambient temperature and the pre-cooling mode is cooling mode, then the opening of the regulating valve is reduced.

4. The air conditioning control method according to claim 2, characterized in that, The step of adjusting the opening of the regulating valve on the refrigerant branch of the air conditioner according to the pre-operation mode and the comparison result specifically includes: If the indoor ambient temperature is lower than the target ambient temperature and the pre-heating mode is heating mode, then the opening of the regulating valve is reduced. If the indoor ambient temperature is greater than the target ambient temperature and the pre-heating mode is heating mode, then the opening of the regulating valve is increased.

5. The air conditioning control method according to claim 3 or 4, characterized in that, In the step of adjusting the opening of the regulating valve on the refrigerant branch of the air conditioner according to the pre-operation mode and the comparison result, the opening adjustment change value of the regulating valve is determined according to the temperature difference between the indoor ambient temperature and the target ambient temperature, and the opening adjustment change value is positively correlated with the temperature difference.

6. The air conditioning control method according to any one of claims 2 to 4, characterized in that, Also includes: Upon receiving a signal to control the air conditioner to enter heating mode, cooling mode, or defrost mode, the three-way valve is controlled to connect to the indoor main inlet pipe.

7. A control device for an air conditioner based on claim 1, characterized in that, include: The first control module is used to receive a signal that controls the air conditioner to enter the constant temperature and dehumidification mode, and then control the three-way valve to connect to the refrigerant branch to enter the constant temperature and dehumidification mode, and obtain the indoor ambient temperature. The second control module is used to generate execution logic based on the indoor ambient temperature and the target ambient temperature in the constant temperature and dehumidification mode, and to adjust the operating parameters of the air conditioner based on the execution logic. The step of generating execution logic based on the indoor ambient temperature and the target ambient temperature in the constant temperature and dehumidification mode, and adjusting the operating parameters of the air conditioner according to the execution logic, specifically includes: Obtain the pre-operation mode of the air conditioner before entering the constant temperature and dehumidification mode, and calculate the comparison result between the indoor ambient temperature and the target ambient temperature; Based on the aforementioned pre-operation mode and the comparison result, the opening degree of the regulating valve on the refrigerant branch of the air conditioner is adjusted.

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