Air conditioner and air conditioner control method

Abstract

The application provides an air conditioner and an air conditioner control method. The method comprises the following steps: acquiring a refrigerant temperature collected by a liquid pipe temperature sensor when the air conditioner is in a refrigeration mode; controlling the refrigerant to flow into an indoor heat exchanger through a first channel when the refrigerant temperature is greater than or equal to a first temperature threshold; and controlling the refrigerant to flow through a second channel and then flow into the indoor heat exchanger through the second channel when the refrigerant temperature is less than the first temperature threshold. The air conditioner and the air conditioner control method provided by the application can make the air conditioner perform refrigeration at a lower ambient temperature, thereby expanding the working temperature range of the air conditioner.

Description

Technical Field

[0001] This application relates to the field of air conditioner control, and more particularly to an air conditioner and an air conditioner control method. Background Technology

[0002] As people's living standards continue to improve and the level of intelligence in home appliances continues to rise, smart home appliances are becoming increasingly popular. Users can use air conditioners to heat in winter to raise the indoor temperature, and they can also use air conditioners to cool in summer to lower the indoor temperature.

[0003] However, in certain special circumstances, users need to use air conditioners for cooling in low-temperature environments. Under these low-temperature conditions, the indoor evaporator may frost up, affecting the normal operation of the air conditioner. Summary of the Invention

[0004] The purpose of this application is to provide an air conditioner and an air conditioner control method, which enables the air conditioner to cool at lower ambient temperatures, thereby expanding the operating temperature range of the air conditioner.

[0005] This application provides an air conditioner, including:

[0006] The control unit includes a liquid pipe temperature sensor located between the electronic expansion valve of the indoor unit and the indoor evaporator. A first passage and a second passage connected in parallel with the first passage are provided between the liquid pipe temperature sensor and the indoor evaporator. A heat storage device is provided on the second passage. The heat storage device is used to increase the temperature of the refrigerant flowing through the second passage. The heat stored in the heat storage device is generated by the fan of the indoor unit. The control unit is used to acquire the refrigerant temperature collected by the liquid pipe temperature sensor when the air conditioner is operating in cooling mode. The control unit is also used to control the refrigerant to flow into the indoor heat exchanger through the first passage when the refrigerant temperature is greater than or equal to a first temperature threshold. The control unit is also used to control the refrigerant to flow through the second passage into the indoor heat exchanger when the refrigerant temperature is less than the first temperature threshold.

[0007] Optionally, the control unit is specifically configured to control the refrigerant to flow into the indoor heat exchanger through the first passage when the air conditioner starts to run in cooling mode, and to obtain the refrigerant temperature collected by the liquid pipe temperature sensor after running for a preset time.

[0008] Optionally, a first solenoid valve is provided on the first passage; a second solenoid valve is provided on the second passage; the control unit is specifically used to control the first solenoid valve to open and the second solenoid valve to close when the refrigerant temperature is greater than or equal to the first temperature threshold; the control unit is also specifically used to control the second solenoid valve to open and the first solenoid valve to close when the refrigerant temperature is less than the first temperature threshold.

[0009] Optionally, the air conditioner further includes a heat exchange circuit; the heat exchange circuit is used to conduct the heat generated by the fan to the heat storage device; a third solenoid valve is provided on the heat exchange circuit.

[0010] Optionally, the control unit is further configured to control the third solenoid valve to open when the refrigerant temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, so as to conduct the heat generated by the fan to the heat storage device; wherein the second temperature threshold is greater than the first temperature threshold.

[0011] Optionally, the control unit is further configured to control the second solenoid valve and the third solenoid valve to open and control the first solenoid valve to close when the refrigerant temperature is the first time it is obtained and the refrigerant temperature is less than the first temperature threshold.

[0012] This application also provides an air conditioner control method, including:

[0013] When the air conditioner is operating in cooling mode, the refrigerant temperature collected by the liquid pipe temperature sensor is obtained; when the refrigerant temperature is greater than or equal to a first temperature threshold, the refrigerant is controlled to flow into the indoor heat exchanger through a first passage; when the refrigerant temperature is less than the first temperature threshold, the refrigerant is controlled to flow through a second passage and into the indoor heat exchanger through the second passage.

[0014] Optionally, obtaining the refrigerant temperature collected by the liquid pipe temperature sensor includes: when the air conditioner starts running in cooling mode, controlling the refrigerant to flow into the indoor heat exchanger through the first passage, and after running for a preset time, obtaining the refrigerant temperature collected by the liquid pipe temperature sensor.

[0015] Optionally, controlling the refrigerant to flow into the indoor heat exchanger through the first passage when the refrigerant temperature is greater than or equal to the first temperature threshold includes: controlling the first solenoid valve of the first passage to open and the second solenoid valve of the second passage to close when the refrigerant temperature is greater than or equal to the first temperature threshold; controlling the refrigerant to flow through the second passage when the refrigerant temperature is less than the first temperature threshold includes: controlling the second solenoid valve to open and the first solenoid valve to close when the refrigerant temperature is less than the first temperature threshold.

[0016] Optionally, the method further includes: when the refrigerant temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, controlling the third solenoid valve of the heat exchange circuit to open, so as to conduct the heat generated by the indoor unit's fan to the heat storage device; wherein the second temperature threshold is greater than the first temperature threshold.

[0017] Optionally, the method further includes: when the refrigerant temperature is obtained for the first time and the refrigerant temperature is less than the first temperature threshold, controlling the second solenoid valve and the third solenoid valve to open, and controlling the first solenoid valve to close.

[0018] This application also provides an air conditioner control device, including:

[0019] The acquisition module is used to acquire the refrigerant temperature collected by the liquid pipe temperature sensor when the air conditioner is running in cooling mode; the control module is used to control the refrigerant to flow into the indoor heat exchanger through the first passage when the refrigerant temperature is greater than or equal to a first temperature threshold; the control module is also used to control the refrigerant to flow through the second passage and into the indoor heat exchanger when the refrigerant temperature is less than the first temperature threshold.

[0020] Optionally, the control module is further configured to control the refrigerant to flow into the indoor heat exchanger through the first passage when the air conditioner starts to run in cooling mode, and to acquire the refrigerant temperature collected by the liquid pipe temperature sensor through the acquisition module after a preset running time.

[0021] Optionally, the control module is specifically configured to control the first solenoid valve to open and the second solenoid valve to close when the refrigerant temperature is greater than or equal to the first temperature threshold; the control module is also specifically configured to control the second solenoid valve to open and the first solenoid valve to close when the refrigerant temperature is less than the first temperature threshold.

[0022] Optionally, the control module is further configured to control the third solenoid valve to open when the refrigerant temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, so as to conduct the heat generated by the fan to the heat storage device; wherein the second temperature threshold is greater than the first temperature threshold.

[0023] Optionally, the control module is further configured to control the second solenoid valve and the third solenoid valve to open and control the first solenoid valve to close when the refrigerant temperature is the first time it is obtained and the refrigerant temperature is less than the first temperature threshold.

[0024] This application also provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of any of the above-described air conditioner control methods.

[0025] This application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of any of the above-described air conditioner control methods.

[0026] This application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above-described air conditioner control methods.

[0027] The air conditioner and air conditioner control method provided in this application, when the air conditioner is operating in cooling mode, if the refrigerant temperature collected by the liquid pipe temperature sensor is greater than or equal to a first temperature threshold, then the refrigerant is controlled to flow into the indoor heat exchanger through a first passage; otherwise, the refrigerant is controlled to flow through a second passage into the indoor heat exchanger. By setting a heat storage device in the indoor unit, the air conditioner can cool at lower ambient temperatures, thereby expanding the operating temperature range of the air conditioner. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the air conditioner's operating principle provided in this application;

[0030] Figure 2 This is a structural schematic diagram of the air conditioner provided in this application;

[0031] Figure 3 This is one of the flowcharts illustrating the air conditioner control method provided in this application;

[0032] Figure 4 This is the second flowchart of the air conditioner control method provided in this application;

[0033] Figure 5 This is a schematic diagram of the structure of the air conditioner control device provided in this application;

[0034] Figure 6 This is a schematic diagram of the structure of the electronic device provided in this application. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] The operating principle of the air conditioner involved in the embodiments of this application is described in detail below:

[0038] like Figure 1 As shown, the compressor compresses the refrigerant and delivers it through pipes to the condenser. The high-temperature, high-pressure gaseous refrigerant releases heat in the condenser, transforming into a medium-temperature, high-pressure liquid refrigerant. Then, the medium-temperature, high-pressure liquid refrigerant is depressurized through a capillary tube (throttling unit) to become a low-temperature, low-pressure liquid refrigerant. This low-temperature, low-pressure liquid refrigerant is then delivered to the evaporator, where it evaporates into a gas, absorbing a large amount of heat during the evaporation process. Finally, the low-temperature, low-pressure gaseous refrigerant in the evaporator is delivered to the compressor to participate in the next cycle. When the air conditioner is cooling, the outdoor unit's heat exchanger acts as the condenser, and the indoor unit's heat exchanger acts as the evaporator; conversely, when the air conditioner is heating, the outdoor unit's heat exchanger acts as the evaporator, and the indoor unit's heat exchanger acts as the condenser.

[0039] When the air conditioner is in cooling mode, if the indoor ambient temperature is low, a large amount of water vapor will condense on the surface of the indoor heat exchanger, which will then condense into frost at low temperatures. Frost buildup on the indoor heat exchanger can easily lead to blockage of the channels between the heat exchanger fins, thereby increasing airflow resistance and thermal resistance of the heat exchanger, and ultimately reducing the heat exchanger's heat exchange capacity. Therefore, it is necessary to defrost the heat exchanger from time to time.

[0040] In related technologies, defrosting methods for indoor heat exchangers include controlling the compressor frequency based on the indoor coil temperature when the compressor is running in cooling mode. When the indoor coil temperature is <0℃ for 5 minutes, the compressor stops running for 3 minutes; when the indoor coil temperature is >6℃, the compressor restarts. However, this defrosting method has limitations. For example, the coil temperature is easily affected by the ambient temperature. When running in cooling mode at low temperatures, the detected coil temperature easily reaches the protection setpoint, causing defrosting to be performed even when there is no frost, and failing to perform defrosting in time when there is frost, resulting in poor cooling performance and slow cooling speed.

[0041] In view of the technical problems existing in the related technologies, the embodiments of this application propose to increase the evaporation temperature of the indoor heat exchanger by setting a heat storage device in the indoor unit, so as to ensure that the indoor evaporator will not frost and that the air conditioner will always operate in normal cooling mode.

[0042] The air conditioner control method provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0043] like Figure 2 As shown in the embodiment of this application, an air conditioner is provided, which includes: a control unit; a liquid pipe temperature sensor 203 disposed between an electronic expansion valve 201 of the indoor unit and an indoor evaporator 202; a first passage 204 and a second passage 205 connected in parallel with the first passage 204 are disposed between the liquid pipe temperature sensor 203 and the indoor evaporator 202; a heat storage device 206 is disposed on the second passage 205; the heat storage device 206 is used to increase the temperature of the refrigerant flowing through the second passage 205; the heat stored in the heat storage device 206 is the heat generated by the fan 207 of the indoor unit.

[0044] For example, the control unit described above is used to acquire the refrigerant temperature collected by the liquid pipe temperature sensor 203 when the air conditioner is operating in cooling mode.

[0045] For example, the control unit described above is also configured to control the refrigerant to flow into the indoor heat exchanger 202 through the first passage 204 when the refrigerant temperature collected by the liquid pipe temperature sensor 203 is greater than or equal to the first temperature threshold.

[0046] For example, the control unit is further configured to control the refrigerant to flow through the second passage 205 and into the indoor heat exchanger 202 when the refrigerant temperature collected by the liquid pipe temperature sensor 203 is less than the first temperature threshold.

[0047] For example, the liquid pipe temperature sensor 203 is used to collect the temperature of the refrigerant in the copper pipe between the electronic expansion valve 201 and the indoor heat exchanger 202.

[0048] For example, when the refrigerant temperature collected by the liquid line temperature sensor 203 is greater than or equal to the first temperature threshold, it indicates that the refrigerant temperature entering the indoor heat exchanger 202 is high, and frost will not form on the indoor heat exchanger 202. When the refrigerant temperature collected by the liquid line temperature sensor 203 is less than the first temperature threshold, it indicates that the refrigerant temperature entering the indoor heat exchanger 202 is low, and frost may form on the indoor heat exchanger 202. To avoid frost formation on the surface of the indoor heat exchanger 202, it is necessary to increase the temperature of the refrigerant entering the indoor heat exchanger 202.

[0049] For example, when the refrigerant temperature collected by the liquid pipe temperature sensor 203 is lower than the first temperature threshold, the refrigerant flow path into the indoor heat exchanger 202 can be switched from the first path to the second path 205. The heat storage device 206 set in the second path 205 heats the refrigerant to increase the temperature of the refrigerant entering the indoor heat exchanger 202.

[0050] For example, to achieve the switching of the above-mentioned channels, solenoid valves can be respectively installed on the first channel 204 and the second channel 205. Figure 2 As shown, a first solenoid valve V1 is provided on the first passage 204; a second solenoid valve V2 is provided on the second passage 205.

[0051] Specifically, the control unit is used to control the first solenoid valve V1 to open and the second solenoid valve V2 to close when the refrigerant temperature collected by the liquid pipe temperature sensor 203 is greater than or equal to the first temperature threshold.

[0052] Specifically, the control unit is further configured to control the second solenoid valve V2 to open and the first solenoid valve V1 to close when the refrigerant temperature collected by the liquid pipe temperature sensor 203 is less than the first temperature threshold.

[0053] In one possible implementation, the refrigerant path switching step described above needs to be performed after the air conditioner has been turned on in cooling mode and has been running stably for a period of time.

[0054] For example, the control unit is specifically used to control the refrigerant to flow into the indoor heat exchanger through the first passage when the air conditioner starts to run in cooling mode, and to obtain the refrigerant temperature collected by the liquid pipe temperature sensor 203 after running for a preset time.

[0055] For example, in the step of obtaining the refrigerant temperature collected by the liquid pipe temperature sensor, the refrigerant temperature can be obtained in real time or according to a preset cycle.

[0056] Optionally, in this embodiment, the heat storage device 206 can be a phase change heat storage device, which stores heat by relying on the heat generated by the air conditioner itself.

[0057] For example, such as Figure 2 As shown, unlike the auxiliary heating method using electric heating wires in related technologies, the heat storage device 206 in this embodiment can rely on the fan 207 of the indoor unit of the air conditioner to provide heat. The motor of the fan 207 itself generates heat during operation, and the heat generation can reach up to 60°C, which is sufficient to serve as a heat source for the heat storage device.

[0058] It should be noted that the phase change heat storage device is a hollow cylinder with a heat-conducting material on the inside and an insulating material on the outside. For example, the inside is a double spiral coil heat transfer tube, and the outside is a phase change material filled around the heat transfer tube.

[0059] For example, such as Figure 2 As shown, the air conditioner also includes a heat exchange circuit 208; the heat exchange circuit 208 is used to conduct the heat generated by the fan 207 to the heat storage device 206. Simultaneously, a third solenoid valve V3 is also provided on the heat exchange circuit 208, which is used to control the opening and closing of the heat exchange circuit 208.

[0060] For example, the fan 207 can transfer the heat generated by the fan 207 during operation to the heat storage device 206 through the heat exchange circuit 208.

[0061] For example, the control unit is further configured to control the third solenoid valve V3 to open when the refrigerant temperature collected by the liquid pipe temperature sensor 203 is greater than or equal to the first temperature threshold and less than the second temperature threshold, so as to conduct the heat generated by the fan 207 to the heat storage device 206.

[0062] Wherein, the second temperature threshold is greater than the first temperature threshold.

[0063] For example, when the refrigerant temperature collected by the liquid pipe temperature sensor 203 is greater than or equal to the first temperature threshold and less than the second temperature threshold, the heat storage device can store heat so that when the refrigerant temperature collected by the liquid pipe temperature sensor 203 is less than the first temperature threshold, the refrigerant can be heated by the heat storage device, thereby preventing the indoor heat exchanger from frosting.

[0064] For example, in special circumstances, when the control unit first obtains the refrigerant temperature collected by the liquid pipe temperature sensor, if the refrigerant temperature is less than the first temperature threshold mentioned above, the heat storage device can store heat while switching the refrigerant path.

[0065] For example, the control unit is further configured to control the second solenoid valve and the third solenoid valve to open and control the first solenoid valve to close when the refrigerant temperature collected by the liquid pipe temperature sensor is the first acquisition and the refrigerant temperature is less than the first temperature threshold.

[0066] The air conditioner control method provided in this application embodiment, when the air conditioner is operating in cooling mode, if the refrigerant temperature collected by the liquid pipe temperature sensor is greater than or equal to a first temperature threshold, then the refrigerant is controlled to flow into the indoor heat exchanger through a first passage; otherwise, the refrigerant is controlled to flow through a second passage into the indoor heat exchanger. By setting a heat storage device in the indoor unit, the air conditioner can cool at lower ambient temperatures, thereby expanding the operating temperature range of the air conditioner.

[0067] It should be noted that the air conditioner control method provided in this application embodiment can be executed by an air conditioner control device or a control module within the air conditioner control device for executing the air conditioner control method. This application embodiment uses the execution of the air conditioner control method by an air conditioner control device as an example to illustrate the air conditioner control device provided in this application embodiment.

[0068] It should be noted that, in the embodiments of this application, the air conditioner control methods shown in the accompanying drawings are all illustrated by way of example with reference to one of the accompanying drawings in the embodiments of this application. In specific implementation, the air conditioner control methods shown in the accompanying drawings of the above methods can also be implemented in conjunction with any other accompanying drawings shown in the above embodiments, which will not be elaborated here.

[0069] The air conditioner control device provided in this application is described below, and the air conditioner control method described below can be referred to in correspondence with the air conditioner control method described above.

[0070] Figure 3 This is a schematic flowchart of an air conditioner control method provided in an embodiment of this application, as shown below. Figure 3 As shown, the method may include the following steps 301 to 303:

[0071] Step 301: When the air conditioner is running in cooling mode, acquire the refrigerant temperature collected by the liquid pipe temperature sensor.

[0072] Step 302: When the refrigerant temperature is greater than or equal to the first temperature threshold, control the refrigerant to flow into the indoor heat exchanger through the first passage.

[0073] Step 303: When the refrigerant temperature is lower than the first temperature threshold, control the refrigerant to flow through the second passage and into the indoor heat exchanger through the second passage.

[0074] Optionally, step 301 above may further include step 301a:

[0075] Step 301a: When the air conditioner starts running in cooling mode, control the refrigerant to flow into the indoor heat exchanger through the first passage, and after running for a preset time, obtain the refrigerant temperature collected by the liquid pipe temperature sensor.

[0076] Specifically, step 302 above may include the following step 302a:

[0077] Step 302a: When the refrigerant temperature is greater than or equal to the first temperature threshold, control the first solenoid valve to open and the second solenoid valve to close.

[0078] Specifically, step 303 above may include the following step 303a:

[0079] Step 303a: When the refrigerant temperature is lower than the first temperature threshold, control the second solenoid valve to open and the first solenoid valve to close.

[0080] Optionally, the air conditioner control method provided in this application embodiment may further include the following step 304:

[0081] Step 304: When the refrigerant temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, control the third solenoid valve to open so as to conduct the heat generated by the fan to the heat storage device.

[0082] Wherein, the second temperature threshold is greater than the first temperature threshold.

[0083] Optionally, the air conditioner control method provided in this application embodiment may further include the following step 305:

[0084] Step 305: When the refrigerant temperature is obtained for the first time and the refrigerant temperature is less than the first temperature threshold, control the second solenoid valve and the third solenoid valve to open, and control the first solenoid valve to close.

[0085] For example, such as Figure 4 The diagram shows the overall flow of the air conditioner control method provided in this application embodiment. After the air conditioner starts and runs in cooling mode, it needs to run continuously for a certain period of time to wait for the system to stabilize. Then, the refrigerant temperature T collected by the temperature sensor (i.e., the liquid pipe temperature sensor mentioned above) can be acquired according to a preset cycle or in real time. When T2 ≤ T < T1, the air conditioner can store heat in the heat storage device; when T < T2, the air conditioner first needs to determine whether heat storage in the heat storage device is activated. If yes, the refrigerant path is switched; if not, heat storage in the heat storage device needs to be activated and the refrigerant path switched. When T > T2, the air conditioner can stop heat storage in the heat storage device and restore the refrigerant path after activating heat storage in the heat storage device and switching the refrigerant path.

[0086] Figure 5 This is a schematic diagram of the structure of an air conditioner control device provided in an embodiment of this application, as shown below. Figure 5 As shown, it specifically includes:

[0087] The acquisition module 501 is used to acquire the refrigerant temperature collected by the liquid pipe temperature sensor when the air conditioner is running in cooling mode; the control module 502 is used to control the refrigerant to flow into the indoor heat exchanger through the first passage when the refrigerant temperature is greater than or equal to a first temperature threshold; the control module 502 is also used to control the refrigerant to flow through the second passage and into the indoor heat exchanger when the refrigerant temperature is less than the first temperature threshold.

[0088] Optionally, the control module 502 is further configured to control the refrigerant to flow into the indoor heat exchanger through the first passage when the air conditioner starts to run in cooling mode, and to acquire the refrigerant temperature collected by the liquid pipe temperature sensor through the acquisition module 501 after a preset running time.

[0089] Optionally, the control module 502 is specifically configured to control the first solenoid valve to open and the second solenoid valve to close when the refrigerant temperature is greater than or equal to the first temperature threshold; the control module 502 is also specifically configured to control the second solenoid valve to open and the first solenoid valve to close when the refrigerant temperature is less than the first temperature threshold.

[0090] Optionally, the control module 502 is further configured to control the third solenoid valve to open when the refrigerant temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, so as to conduct the heat generated by the fan to the heat storage device; wherein the second temperature threshold is greater than the first temperature threshold.

[0091] Optionally, the control module 502 is further configured to control the second solenoid valve and the third solenoid valve to open and control the first solenoid valve to close when the refrigerant temperature is the first time it is obtained and the refrigerant temperature is less than the first temperature threshold.

[0092] The air conditioner control device provided in this application, when the air conditioner is operating in cooling mode, if the refrigerant temperature collected by the liquid pipe temperature sensor is greater than or equal to a first temperature threshold, controls the refrigerant to flow into the indoor heat exchanger through a first passage; otherwise, controls the refrigerant to flow through a second passage into the indoor heat exchanger. By installing a heat storage device in the indoor unit, the air conditioner can cool at lower ambient temperatures, thereby expanding the operating temperature range of the air conditioner.

[0093] Figure 6 This example illustrates a schematic diagram of the physical structure of an electronic device, which can be the aforementioned air conditioner, such as... Figure 6 As shown, the electronic device may include a processor 610, a communication interface 620, a memory 630, and a communication bus 640, wherein the processor 610, the communication interface 620, and the memory 630 communicate with each other via the communication bus 640. The processor 610 can call logic instructions in the memory 630 to execute an air conditioner control method, which includes: when the air conditioner is operating in cooling mode, acquiring the refrigerant temperature collected by a liquid pipe temperature sensor; when the refrigerant temperature is greater than or equal to a first temperature threshold, controlling the refrigerant to flow into the indoor heat exchanger through a first passage; and when the refrigerant temperature is less than the first temperature threshold, controlling the refrigerant to flow through a second passage into the indoor heat exchanger through the second passage.

[0094] Furthermore, the logical instructions in the aforementioned memory 630 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 this application, in essence, or the part that contributes to the prior art, or a portion 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 described in the various embodiments of this application. 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, this application also provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the air conditioner control method provided by the above methods. The method includes: when the air conditioner is operating in cooling mode, acquiring the refrigerant temperature collected by a liquid pipe temperature sensor; when the refrigerant temperature is greater than or equal to a first temperature threshold, controlling the refrigerant to flow into the indoor heat exchanger through a first passage; and when the refrigerant temperature is less than the first temperature threshold, controlling the refrigerant to flow through a second passage into the indoor heat exchanger through the second passage.

[0096] In another aspect, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the aforementioned air conditioner control methods, the method comprising: when the air conditioner is operating in cooling mode, acquiring a refrigerant temperature collected by a liquid pipe temperature sensor; when the refrigerant temperature is greater than or equal to a first temperature threshold, controlling the refrigerant to flow into an indoor heat exchanger through a first passage; and when the refrigerant temperature is less than the first temperature threshold, controlling the refrigerant to flow through a second passage into the indoor heat exchanger through the second passage.

[0097] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. 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., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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. Such 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 this application.

Claims

1. An air conditioner, characterized in that, include: Control unit; A liquid pipe temperature sensor is installed between the electronic expansion valve of the indoor unit and the indoor evaporator; a first passage and a second passage connected in parallel with the first passage are provided between the liquid pipe temperature sensor and the indoor evaporator; a heat storage device is provided on the second passage; the heat storage device is used to increase the temperature of the refrigerant flowing through the second passage; the heat stored in the heat storage device is generated by the heat generated by the fan of the indoor unit. The control unit is used to acquire the refrigerant temperature collected by the liquid pipe temperature sensor when the air conditioner is operating in cooling mode. The control unit is further configured to control the refrigerant to flow into the indoor heat exchanger through the first passage when the refrigerant temperature is greater than or equal to the first temperature threshold. The control unit is further configured to control the refrigerant to flow through the second passage and into the indoor heat exchanger when the refrigerant temperature is lower than the first temperature threshold. The air conditioner also includes a heat exchange circuit; the heat exchange circuit is used to conduct the heat generated by the fan to the heat storage device; a third solenoid valve is provided on the heat exchange circuit; a first solenoid valve is provided on the first passage; and a second solenoid valve is provided on the second passage. The control unit is further configured to control the third solenoid valve to open when the refrigerant temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, so as to conduct the heat generated by the fan to the heat storage device; wherein the second temperature threshold is greater than the first temperature threshold. The control unit is further configured to, when the refrigerant temperature is the first time it is obtained and the refrigerant temperature is less than the first temperature threshold, control the second solenoid valve and the third solenoid valve to open, and control the first solenoid valve to close.

2. The air conditioner according to claim 1, characterized in that, The control unit is specifically used to control the refrigerant to flow into the indoor heat exchanger through the first passage when the air conditioner starts to run in cooling mode, and to obtain the refrigerant temperature collected by the liquid pipe temperature sensor after running for a preset time.

3. The air conditioner according to claim 1, characterized in that, The control unit is specifically used to control the first solenoid valve to open and the second solenoid valve to close when the refrigerant temperature is greater than or equal to the first temperature threshold. The control unit is further configured to control the second solenoid valve to open and the first solenoid valve to close when the refrigerant temperature is lower than the first temperature threshold.

4. An air conditioner control method, characterized in that, The method, applied to any one of claims 1 to 3, comprises: When the air conditioner is operating in cooling mode, the refrigerant temperature collected by the liquid pipe temperature sensor is obtained; When the refrigerant temperature is greater than or equal to the first temperature threshold, the refrigerant is controlled to flow into the indoor heat exchanger through the first passage; When the refrigerant temperature is lower than the first temperature threshold, the refrigerant is controlled to flow through the second passage and into the indoor heat exchanger through the second passage; The method further includes: When the refrigerant temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, the third solenoid valve is controlled to open to conduct the heat generated by the fan to the heat storage device; wherein the second temperature threshold is greater than the first temperature threshold. When the refrigerant temperature is the first time it is obtained and the refrigerant temperature is less than the first temperature threshold, the second solenoid valve and the third solenoid valve are controlled to open, and the first solenoid valve is controlled to close.

5. The method according to claim 4, characterized in that, The acquisition of the refrigerant temperature from the liquid line temperature sensor includes: When the air conditioner starts running in cooling mode, the refrigerant is controlled to flow into the indoor heat exchanger through the first passage, and after running for a preset time, the refrigerant temperature collected by the liquid pipe temperature sensor is obtained.

6. The method according to claim 4, characterized in that, When the refrigerant temperature is greater than or equal to a first temperature threshold, controlling the refrigerant to flow into the indoor heat exchanger through the first passage includes: When the refrigerant temperature is greater than or equal to the first temperature threshold, the first solenoid valve of the first passage is opened and the second solenoid valve of the second passage is closed. When the refrigerant temperature is lower than the first temperature threshold, controlling the refrigerant flow through the second passage includes: When the refrigerant temperature is lower than the first temperature threshold, the second solenoid valve is opened and the first solenoid valve is closed.

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