CN118757877A - Outdoor unit control method, control device and air conditioner - Google Patents

Abstract

The present application discloses a control method, a control device and an air conditioner for an outdoor unit, and relates to the technical field of air conditioning. The communication connection between the control device and the indoor unit of the air conditioner allows the transmission of an on/off signal but does not allow the transmission of an operating status signal of the indoor unit. The method comprises: receiving a start-up signal of the indoor unit and starting timing to obtain a timing duration; determining a target set temperature of the indoor unit according to the reception status of a stop signal of the indoor unit and the timing duration; and controlling the operation of the outdoor unit according to the target set temperature. The present application aims to reduce the restrictions on the application types of the control device in the outdoor unit while meeting the indoor temperature adjustment requirements.

Description

Outdoor unit control method, control device and air conditioner

Technical Field

The present application relates to the technical field of air conditioning, and in particular to a control method and a control device for an outdoor unit and an air conditioner.

Background Art

During the operation of the air conditioner, the indoor unit and the outdoor unit generally need to be connected in communication. The indoor unit can send a signal to the outdoor unit, and the outdoor unit operates according to the received signal.

At present, some controllers have communication limitations. When installed in the outdoor unit, they can only transmit simple on-off signals such as G (air supply), Y (cooling), B (four-way valve), and W (heating). The indoor unit cannot transmit status information such as the indoor temperature detection to the outdoor unit. The operation of the outdoor unit cannot meet the indoor temperature control requirements, which limits the application of some types of controllers in outdoor units.

Summary of the invention

The main purpose of the present application is to provide a control method, a control device and an air conditioner for an outdoor unit, aiming to meet the indoor temperature control requirements while reducing the restrictions on the application types of the control device in the outdoor unit.

To achieve the above object, the present application proposes a control method for an outdoor unit, which is applied to a control device of an outdoor unit in an air conditioner, wherein the communication connection between the control device and the indoor unit of the air conditioner allows transmission of an on/off signal but does not allow transmission of an operating status signal of the indoor unit, and the method comprises:

Receiving a power-on signal from the indoor unit and starting timing to obtain a timing duration;

determining a target set temperature of the indoor unit according to a reception state of a stop signal of the indoor unit and the timing duration;

The outdoor unit is controlled to operate according to the target setting temperature.

In one embodiment, the receiving state includes whether the shutdown signal is received, and the step of determining the set temperature of the indoor unit according to the receiving state of the shutdown signal of the indoor unit and the timing duration includes:

In the case where the shutdown signal is not received, the target setting temperature of the indoor unit in the current on state is determined according to the timing duration.

In one embodiment, when the air conditioner is in cooling mode, the target setting temperature is negatively correlated with the timing duration; and/or,

When the air conditioner is in a heating mode, the target setting temperature is positively correlated with the timing duration.

In one embodiment, after the step of controlling the outdoor unit to start up and counting the timing duration of the indoor unit, the method further includes:

When the timing duration is greater than or equal to the preset duration and the shutdown signal is not received, the target setting temperature of the indoor unit in the current on state is determined according to the timing duration.

In one embodiment, the receiving state includes whether the shutdown signal is received, and the step of determining the set temperature of the indoor unit according to the receiving state of the shutdown signal of the indoor unit and the timing duration includes:

When the shutdown signal is received and the timing duration is less than the preset duration, adjusting the set temperature of the indoor unit currently used to control the operation of the outdoor unit, and obtaining the target set temperature when the indoor unit is turned on next time;

The heat exchange amount of the indoor unit corresponding to the target setting temperature is smaller than the heat exchange amount of the indoor unit corresponding to the setting temperature of the indoor unit currently used to control the operation of the outdoor unit.

In one embodiment, the step of adjusting the set temperature of the indoor unit currently used to control the operation of the outdoor unit to obtain the target set temperature when the indoor unit is turned on next time includes:

When the heat exchange mode is a cooling mode, determining a first temperature as the target set temperature when the indoor unit is turned on for cooling next time, the first temperature being greater than a set temperature of the indoor unit currently used to control the operation of the outdoor unit; and/or

When the heat exchange mode is the heating mode, the second temperature is determined to be the target set temperature when the indoor unit is turned on for heating next time, and the second temperature is less than the set temperature of the indoor unit currently used to control the operation of the outdoor unit.

In one embodiment, the step of controlling the operation of the outdoor unit according to the target set temperature comprises:

Determining the energy demand value of the indoor unit according to the temperature difference between the preset indoor temperature and the target setting temperature;

The operation of the outdoor unit is controlled according to the energy demand value.

In addition, to achieve the above-mentioned purpose, the present application also proposes a control device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the outdoor unit control method as described above.

In one embodiment, the control device comprises a 24V controller.

In addition, to achieve the above-mentioned purpose, the present application also proposes an air conditioner, which includes an outdoor unit and an indoor unit, and the outdoor unit includes the control device as described above.

One or more technical solutions proposed in the present application have at least the following technical effects: in the case where the communication connection between the control device of the outdoor unit and the indoor unit limits the transmission of the operating status signal of the indoor unit, the solution controls the operation of the outdoor unit by determining the target set temperature of the indoor unit according to the timing duration after receiving the start-up signal of the indoor unit and the receiving status of the shutdown signal of the indoor unit. In this process, even if the control device cannot receive the set temperature sent by the indoor unit, the energy demand of the indoor unit can be estimated by the timing duration and the receiving status of the shutdown signal, thereby ensuring that even if the control device has communication restrictions with the indoor unit, the output capacity of the outdoor unit can meet the indoor temperature control requirements when it is applied to the outdoor unit, thereby meeting the indoor temperature control requirements while reducing the restrictions on the application type of the control device in the outdoor unit.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

FIG1 is a schematic diagram of the device structure of the hardware operating environment involved in the control method of the outdoor unit in the embodiment of the present application;

FIG2 is a flow chart of a control method for an outdoor unit according to an embodiment of the present invention;

FIG3 is a flow chart of a second embodiment of a control method for an outdoor unit of the present application.

The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

DETAILED DESCRIPTION

It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

The main solution of the embodiment of the present application is: a control method is proposed based on a control device of an outdoor unit, the communication connection between the control device and the indoor unit of the air conditioner allows the transmission of on-off signals but does not allow the transmission of the operating status signal of the indoor unit, the method comprising: receiving the start-up signal of the indoor unit and starting timing to obtain the timing duration; determining the target set temperature of the indoor unit according to the reception status of the stop signal of the indoor unit and the timing duration; and controlling the operation of the outdoor unit according to the target set temperature.

In this embodiment, for the convenience of description, the following description is made with a 24V controller as the execution subject.

Due to the existing technology, some controllers (such as 24V controllers, etc.) have communication limitations. When installed in the outdoor unit, they can only transmit simple on-off signals such as G (air supply), Y (cooling), B (four-way valve), and W (heating). The indoor unit cannot transmit status information such as the indoor detected temperature to the outdoor unit. The operation of the outdoor unit cannot meet the indoor temperature control requirements, which limits the application of some types of controllers in outdoor units.

The present application provides the above-mentioned solution, which controls the operation of the outdoor unit by determining the target set temperature of the indoor unit according to the timing duration after receiving the start-up signal of the indoor unit and the receiving status of the shutdown signal of the indoor unit. In this process, even if the control device cannot receive the set temperature sent by the indoor unit, the energy demand of the indoor unit can be estimated by the timing duration and the receiving status of the shutdown signal, thereby ensuring that even if the control device has communication restrictions with the indoor unit, the output capacity of the outdoor unit can meet the indoor temperature control requirements when it is applied to the outdoor unit, thereby meeting the indoor temperature control requirements while reducing the restrictions on the application type of the control device in the outdoor unit.

The embodiment of the present application provides a control device 100 for an outdoor unit 1 , which allows transmission of an on/off signal but does not allow transmission of an operating status signal of the external device when the control device 100 is communicatively connected with the external device.

In this embodiment, the control device 100 includes a 24V controller. In other embodiments, the control device 100 may also be other types of controllers with the same communication restrictions.

The control device 100 includes: at least one processor 1001; and a memory 1002 connected to the at least one processor 1001 for communication, and a timer 1003, etc.; wherein the memory 1002 stores instructions that can be executed by at least one processor 1001, and the instructions are executed by at least one processor 1001 so that at least one processor 1001 can execute the control method of the outdoor unit in the following embodiment.

Referring to FIG. 1 below, it shows a schematic diagram of the structure of a control device 100 suitable for implementing an embodiment of the present application. The air conditioner in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. The control device 100 shown in FIG. 1 is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

As shown in FIG1 , the control device 100 may include a processor 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which may perform various appropriate actions and processes according to a program stored in a memory 1002, where the program in the memory 1002 may be a program in a read-only memory (ROM) or a program loaded from a storage device into a random access memory (RAM). In the RAM, various programs and data required for the operation of the control device 100 are also stored. The processor 1001 and the memory 1002 (ROM and RAM) are connected to each other through a bus. An input/output (I/O) interface is also connected to the bus. Generally, the following systems may be connected to the I/O interface: input devices such as a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices such as a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices such as a magnetic tape, a hard disk, etc.; and communication devices. The communication device may allow the control device 100 to communicate with other devices wirelessly or by wire to exchange data. Although the control device 100 is shown with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have instead.

In particular, according to the embodiments disclosed in the present application, the method flow described in the following embodiments can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through a communication device, or installed from the memory 1002. When the computer program is executed by the processor 1001, the above functions defined in the control method of the outdoor unit of the embodiment disclosed in the present application are executed.

The air conditioner provided by the present application adopts the control method of the outdoor unit in the following embodiment, which can solve the technical problem of how to meet the indoor temperature control demand while reducing the restrictions on the application type of the control device in the outdoor unit. Compared with the prior art, the beneficial effects of the air conditioner provided by the present application are the same as the beneficial effects of the control method of the outdoor unit provided in the following embodiment, and other technical features in the air conditioner are the same as the features disclosed in the following embodiment method, which will not be repeated here.

The embodiment of the present application also provides an air conditioner. The air conditioner may include any type of air conditioner such as a wall-mounted air conditioner, a cabinet air conditioner, a ceiling air conditioner, a multi-split air conditioner, etc.

In an embodiment of the present invention, referring to Figure 1, the air conditioner includes an outdoor unit 1 and an indoor unit 2, the outdoor unit 1 includes the above-mentioned control device, and the communication connection between the control device and the indoor unit 2 of the air conditioner allows the transmission of on-off signals but does not allow the transmission of the operating status signal of the indoor unit 2.

The outdoor unit 1 is connected to the indoor unit 2, and the number of the indoor unit 2 can be one or more than one.

It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a 24V controller, an air conditioner, etc. The following takes the 24V controller as an example to illustrate this embodiment and the following embodiments.

Based on this, an embodiment of the present application provides a control method for an outdoor unit. Referring to FIG. 2 , FIG. 2 is a flow chart of a first embodiment of the control method for an outdoor unit of the present application.

In this embodiment, the communication connection between the control device and the indoor unit of the air conditioner allows the transmission of on-off signals but does not allow the transmission of the operating status signal of the indoor unit. The on-off signal may include at least one of the following: a start signal, a stop signal, a four-way valve reversing signal, a heating signal, a cooling signal, etc. The operating status signal is a signal indicating the current state of the indoor unit itself and/or the operating environment in which the indoor unit is located. The operating status signal may include at least one of the following: indoor ambient temperature, indoor heat exchanger temperature, set temperature of the indoor unit, indoor fan speed, etc. The control method of the outdoor unit includes steps S10 to S30:

Step S10, receiving a power-on signal of the indoor unit and starting timing to obtain a timing duration;

The power-on signal here is sent from the indoor unit to the outdoor unit. Receiving the power-on signal indicates that the indoor unit has a power-on operation demand. At this time, the outdoor unit can be turned on and operated when it is in the off state. When the outdoor unit is in the on state, the total energy demand of the currently turned-on indoor unit can be recalculated, and the corresponding operating parameters can be determined according to the total energy demand to provide energy for the indoor unit heat exchange.

The time starts from when the power-on signal is received, and the time obtained is the time here.

When the indoor unit is turned on, the operating parameters of the outdoor unit can be determined according to the preset energy demand value, or according to the environmental parameters detected by the detection module on the outdoor unit received by the control device based on the electrical signal. In this embodiment, when the power-on signal is received, the outdoor unit can be controlled to operate according to the initial set temperature, which can be a preset fixed temperature or can be determined according to the number of indoor units currently in the power-on state. The number of indoor units turned on in the cooling mode is negatively correlated with the initial set temperature, and the number of indoor units turned on in the heating mode is positively correlated with the initial set temperature.

Step S20, determining a target setting temperature of the indoor unit according to a reception state of the shutdown signal of the indoor unit and the timing duration;

In this embodiment, the receiving status includes whether the shutdown signal is received, that is, the shutdown signal is received or not received.

The shutdown signal is sent to the outdoor unit when the indoor unit detects that the indoor temperature reaches the target indoor temperature.

The target set temperature is the target temperature that the indoor environment needs to reach when the indoor unit is in operation.

The target setting temperature of the indoor unit may include a target setting temperature of the indoor unit in a current power-on state or a target setting temperature when the indoor unit is powered on next time.

Different receiving states and different timing durations may correspond to different target set temperatures. The corresponding relationship between the receiving state, timing duration and target set temperature may be determined according to the heat exchange mode currently operated by the air conditioner, and different heat exchange modes correspond to different corresponding relationships.

In one implementation, when the shutdown signal is not received, the target setting temperature of the indoor unit in the current on state is determined according to the timing duration.

In another implementation, when a shutdown signal is received, a target set temperature of the indoor unit when the indoor unit is turned on next time is determined according to the timing duration.

In another implementation, when the receiving state and the timing duration meet the first condition, the set temperature of the indoor unit currently used to control the operation of the outdoor unit is increased to obtain the target set temperature; when the receiving state and the timing duration meet the second condition, the set temperature of the indoor unit currently used to control the operation of the outdoor unit is reduced to obtain the target set temperature. The first condition and/or the second condition can be determined according to the heat exchange mode currently operated by the air conditioner.

Step S30, controlling the operation of the outdoor unit according to the target setting temperature.

The energy demand value of the indoor unit is calculated according to the target set temperature, and the target operating parameters of the outdoor unit (such as the target frequency of the compressor and/or the target opening degree of the outdoor electronic expansion valve, etc.) are determined according to the energy demand value.

When the target set temperature is the target set temperature when the indoor unit is currently on, the outdoor unit is controlled to adjust the current operating state according to the energy demand value corresponding to the target set temperature; when the target set temperature is the target set temperature when the indoor unit is turned on next time, the outdoor unit is controlled to operate according to the target set temperature when the indoor unit's power-on signal is received next time.

If there are more than one indoor units currently powered on, the target set temperature of each indoor unit can be set according to the corresponding shutdown signal reception status and timing duration.

The present embodiment provides a control method for an outdoor unit. In this scheme, when the communication connection between the control device of the outdoor unit and the indoor unit limits the transmission of the operating status signal of the indoor unit, the target set temperature of the indoor unit is determined according to the timing duration after receiving the start-up signal of the indoor unit and the receiving status of the stop signal of the indoor unit to control the operation of the outdoor unit. In this process, even if the control device cannot receive the set temperature sent by the indoor unit, the energy demand of the indoor unit can be estimated by the timing duration and the receiving status of the stop signal, thereby ensuring that even if the control device has communication restrictions with the indoor unit, the output capacity of the outdoor unit can meet the indoor temperature control requirements when the control device is applied to the outdoor unit, thereby meeting the indoor temperature control requirements while reducing the restrictions on the application type of the control device in the outdoor unit.

In a feasible implementation manner, the receiving state includes whether the shutdown signal is received, and the step of determining the set temperature of the indoor unit according to the receiving state of the shutdown signal of the indoor unit and the timing duration includes:

In the case where the shutdown signal is not received, the target setting temperature of the indoor unit in the current on state is determined according to the timing duration.

Different timing durations correspond to different target set temperatures. The relationship between the timing duration and the target set temperature may include a calculation formula, a mapping relationship, etc., and the target set temperature corresponding to the current timing duration may be determined based on the corresponding relationship. The target set temperature is determined based on the duration interval in which the timing duration is located, or the target set temperature is calculated by substituting the timing duration into a preset formula.

In this embodiment, the heat exchange mode of the air conditioner is different, and the corresponding relationship between the timing duration and the target setting temperature is different:

When the air conditioner is in cooling mode, the target set temperature is negatively correlated with the timing duration. In this embodiment, the first temperature adjustment value can be determined according to the timing duration, and the first temperature adjustment value is positively correlated with the timing duration. The target set temperature is obtained by reducing the set temperature of the indoor unit currently used to control the operation of the outdoor unit (for example, the above-mentioned initial set temperature) according to the first temperature adjustment value. Alternatively, the corresponding preset temperature can be obtained as the target set temperature according to the timing duration. For example, when the timing duration has not reached the first duration (for example, 60 minutes, etc.) and the shutdown signal of the indoor unit has not been received, the set temperature of the indoor unit currently used to control the operation of the outdoor unit (for example, 25°C) is maintained unchanged, and the set temperature of the indoor unit currently used to control the operation of the outdoor unit is used as the target set temperature; when the timing duration reaches the first duration and the shutdown signal of the indoor unit is not received, the first preset temperature (for example, 24°C) is determined as the target set temperature, and the first preset temperature is lower than the set temperature of the indoor unit currently used to control the operation of the outdoor unit; when the timing duration reaches the second duration and the shutdown signal of the indoor unit is not received, the second preset temperature (for example, 17°C) is determined as the target set temperature, the second preset temperature is lower than the first preset temperature, and the second duration is longer than the first duration.

When the air conditioner is in heating mode, the target set temperature is positively correlated with the timing duration. In this embodiment, the second temperature adjustment value can be determined according to the timing duration, and the second temperature adjustment value is positively correlated with the timing duration. The target set temperature is obtained by increasing the set temperature of the indoor unit currently used to control the operation of the outdoor unit (for example, the initial set temperature mentioned above) according to the second temperature adjustment value. Alternatively, the corresponding preset temperature can be obtained as the target set temperature according to the timing duration. For example, when the timing duration has not reached the third duration (for example, 60 minutes, etc.) and the shutdown signal of the indoor unit has not been received, the set temperature of the indoor unit currently used to control the operation of the outdoor unit (for example, 22°C) is maintained unchanged, and the set temperature of the indoor unit currently used to control the operation of the outdoor unit is used as the target set temperature; when the timing duration reaches the third duration and the shutdown signal of the indoor unit is not received, the third preset temperature (for example, 23°C) is determined as the target set temperature, and the third preset temperature is greater than the set temperature of the indoor unit currently used to control the operation of the outdoor unit; when the timing duration reaches the fourth duration and the shutdown signal of the indoor unit is not received, the fourth preset temperature (for example, 30°C) is determined as the target set temperature, the fourth preset temperature is greater than the third preset temperature, and the fourth duration is greater than the third duration.

When the air conditioner is in cooling mode or heating mode, the relationship between the timing duration and the target set temperature can be a fixed relationship, or can be determined according to the number of indoor units currently turned on.

In this embodiment, the time that the indoor unit does not reach the temperature can accurately reflect whether the output capacity of the indoor unit is sufficient to meet the indoor temperature control requirements. Therefore, the target set temperature is determined based on the timing time, which is conducive to further ensuring that the output capacity of the outdoor unit can meet the indoor temperature control requirements, avoiding the indoor temperature not reaching the temperature for a long time, and effectively improving the indoor comfort. In the cooling process of the air conditioner, the target set temperature decreases as the timing time increases, and the target set temperature increases as the timing time increases during the heating process of the air conditioner, which can ensure that the air conditioner has enough cooling or heating to adjust the indoor temperature to meet the user's comfort state, further improving the indoor comfort.

In a feasible implementation, after the step of controlling the outdoor unit to turn on and counting the timing duration of the indoor unit, it also includes: when the timing duration is greater than or equal to the preset duration and the shutdown signal is not received, determining the target set temperature of the indoor unit in the current on state according to the timing duration.

In which, when the timing duration is less than the preset duration and no shutdown signal is received, the outdoor unit can be controlled to operate at the initial set temperature.

The preset duration can be a pre-set fixed value, or a value set by the user based on his or her own needs. The preset duration here can also be determined based on the corresponding power-on duration of the indoor unit when the outdoor unit was operated according to the initial set temperature control multiple times before the current moment.

In this embodiment, when the indoor unit does not reach the temperature for a long enough time, the target setting time is adjusted according to the timing time. On the one hand, it is beneficial to improve the operating stability of the outdoor unit. On the other hand, it ensures that the timing time can accurately reflect the indoor demand and improve the accuracy of the outdoor unit output control, so as to further improve the indoor comfort.

In a feasible implementation, the receiving status includes whether the shutdown signal is received, and step S20 may include: when the shutdown signal is received and the timing duration is less than a preset duration, adjusting the set temperature of the indoor unit currently used to control the operation of the outdoor unit, and obtaining the target set temperature when the indoor unit is turned on next time; wherein the heat exchange amount of the indoor unit corresponding to the target set temperature is less than the heat exchange amount of the indoor unit corresponding to the set temperature of the indoor unit currently used to control the operation of the outdoor unit.

The heat exchange amount can include cooling or heating. Different heat exchange modes correspond to different adjustment directions of the set temperature.

In one implementation, when the heat exchange mode is a cooling mode, the first temperature is determined as the target set temperature when the indoor unit is turned on for the next cooling, and the first temperature is greater than the set temperature of the indoor unit currently used to control the operation of the outdoor unit. For example, if the current set temperature of the indoor unit is 25°C, it is increased to 26.5°C. The first temperature can be a pre-set fixed temperature, or a temperature determined according to the actual operation of the air conditioner, for example, it can be determined according to the number of indoor units currently turned on. In other implementations, in the cooling mode, the set temperature of the current indoor unit can also be increased according to the third adjustment value to obtain the target set temperature. Based on this, the cooling output of the indoor unit in the initial stage of the next cooling can be effectively reduced.

In another implementation, when the heat exchange mode is the heating mode, the second temperature is determined as the target set temperature when the indoor unit is turned on for the next heating, and the second temperature is less than the set temperature of the indoor unit currently used to control the operation of the outdoor unit. For example, if the current set temperature of the indoor unit is 22°C, it is reduced to 20.5°C. The second temperature can be a pre-set fixed temperature, or a temperature determined according to the actual operation of the air conditioner, for example, it can be determined according to the number of indoor units currently turned on. In other implementations, in the cooling mode, the target set temperature can also be obtained by reducing the set temperature of the current indoor unit according to the fourth adjustment value. Based on this, the heat output of the indoor unit in the initial stage of the next heating can be effectively reduced.

In this embodiment, when the indoor unit reaches the temperature and shuts down in a short period of time, the above method can effectively reduce the heat exchange output of the indoor unit in the initial stage after the next startup, which can effectively avoid frequent start and stop of the indoor unit and improve the indoor temperature comfort and equipment operation reliability.

Based on any of the above embodiments, in the second embodiment of the present application, the same or similar contents as those in the above embodiments can be referred to the above description, and will not be described in detail later. On this basis, please refer to FIG. 3 , step S30 includes:

Step S31, determining the energy demand value of the indoor unit according to the temperature difference between the preset indoor temperature and the target setting temperature;

The preset indoor temperature is a preset temperature value representing the actual temperature state of the indoor space adjusted by the indoor unit. In the cooling mode, the preset indoor temperature is greater than the above-mentioned initial setting temperature, and in the heating mode, the preset indoor temperature is less than the above-mentioned initial setting temperature. For example, in the cooling mode, the preset indoor temperature is 27°C, and the initial setting temperature is 25°C; in the heating mode, the preset indoor temperature is 20°C, and the initial setting temperature is 22°C.

The corresponding relationship between the temperature difference value and the energy demand value is preset, and the corresponding relationship may include a calculation formula or a mapping relationship, etc., based on which the energy demand value corresponding to the current temperature difference value may be determined. The energy demand value is positively correlated with the absolute value of the temperature difference value.

In one implementation, the energy demand value may be calculated based on the temperature difference value. In another implementation, the rated capacity of the indoor unit may be obtained, and the energy demand value here may be determined based on the first energy demand corresponding to the rated capacity and the second energy demand corresponding to the temperature difference value.

Step S32: controlling the operation of the outdoor unit according to the energy demand value.

The target frequency of the compressor in the outdoor unit is calculated according to the energy demand value, and the compressor is controlled to operate at the target frequency and/or the target opening of the outdoor electronic expansion valve is determined according to the energy demand value, and the outdoor electronic expansion valve is controlled to operate at the target opening.

In this embodiment, even if the control device of the outdoor unit cannot receive the indoor temperature state parameters sent by the indoor unit, the indoor temperature adjustment demand can be effectively met.

In other embodiments, the control device may also detect the outdoor ambient temperature detected by the outdoor ambient detection module based on the electrical signal received by the control device, predict the indoor temperature of the indoor space based on the outdoor ambient temperature, determine the energy requirement value of the indoor unit based on the temperature difference between the predicted indoor temperature and the target set temperature, and control the operation of the outdoor unit based on the energy requirement value.

It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the control method of the outdoor unit of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the control method of the outdoor unit in the above-mentioned embodiment.

The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

The computer-readable storage medium may be included in the air conditioner; or may exist independently without being assembled into the air conditioner.

The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the air conditioner, the air conditioner executes the following process: receiving the power-on signal of the indoor unit and starting timing to obtain the timing duration; determining the target setting temperature of the indoor unit according to the reception status of the shutdown signal of the indoor unit and the timing duration; and controlling the operation of the outdoor unit according to the target setting temperature.

Computer program code for performing the operations of the present application may be written in one or more programming languages or a combination thereof, including object-oriented programming languages such as Java, Smalltalk, C++, and conventional procedural programming languages such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

The readable storage medium provided in the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the control method of the outdoor unit, and can solve the technical problem of how to meet the indoor temperature control requirements while reducing the restrictions on the application types of the control device in the outdoor unit. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the present application are the same as the beneficial effects of the control method of the outdoor unit provided in the above embodiment, and will not be repeated here.

The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and/or flow chart, and the combination of the square boxes in the block diagram and/or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

It should be understood that the various parts disclosed in the present application can be implemented by hardware, software, firmware or a combination thereof. The modules described in the embodiments of the present application can be implemented by software or by hardware. The name of the module does not constitute a limitation on the unit itself under certain circumstances. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

The above description is only part of the embodiments of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the technical concept of the present application, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims (10)

1. A control method of an outdoor unit, which is applied to a control device of an outdoor unit in an air conditioner, wherein a communication connection between the control device and an indoor unit of the air conditioner allows transmission of an on-off signal and does not allow transmission of an operation state signal of the indoor unit, the method comprising:

Receiving a starting signal of the indoor unit and starting timing to obtain timing duration;

determining a target set temperature of the indoor unit according to the receiving state of the stop signal of the indoor unit and the timing duration;

and controlling the outdoor unit to operate according to the target set temperature.

2. The method of claim 1, wherein the receiving state includes whether the shutdown signal is received, and the determining the set temperature of the indoor unit based on the receiving state of the shutdown signal of the indoor unit and the time duration includes:

and under the condition that the shutdown signal is not received, determining the target set temperature of the indoor unit in the current startup state according to the timing duration.

3. The method of claim 2, wherein the target set temperature is inversely related to the time duration when the air conditioner is in a cooling mode; and/or the number of the groups of groups,

And under the condition that the air conditioner is in a heating mode, the target set temperature is positively correlated with the timing duration.

4. The method as set forth in claim 2, wherein after the step of controlling the outdoor unit to be turned on and counting the time duration of the indoor unit, further comprising:

And under the condition that the timing time length is greater than or equal to a preset time length and the stop signal is not received, determining the target set temperature of the indoor unit in the current starting state according to the timing time length.

5. The method of claim 1, wherein the receiving state includes whether the shutdown signal is received, and the determining the set temperature of the indoor unit based on the receiving state of the shutdown signal of the indoor unit and the time duration includes:

When the shutdown signal is received and the timing time length is smaller than a preset time length, adjusting the set temperature of the indoor unit currently used for controlling the operation of the outdoor unit to obtain the target set temperature when the indoor unit is started next time;

The heat exchange amount of the indoor unit corresponding to the target set temperature is smaller than the heat exchange amount of the indoor unit corresponding to the set temperature for controlling the outdoor unit to operate.

6. The method as set forth in claim 5, wherein said step of adjusting a set temperature of said indoor unit currently used for controlling operation of said outdoor unit to obtain said target set temperature at a next start-up of said indoor unit includes:

under the condition that the heat exchange mode is a refrigeration mode, determining a first temperature to be the target set temperature when the indoor unit is started in the next refrigeration mode, wherein the first temperature is larger than the set temperature of the indoor unit currently used for controlling the outdoor unit to operate; and/or the number of the groups of groups,

And under the condition that the heat exchange mode is a heating mode, determining a second temperature to be the target set temperature when the indoor unit is heated and started next time, wherein the second temperature is smaller than the set temperature of the indoor unit currently used for controlling the outdoor unit to operate.

7. The method as set forth in any one of claims 1 to 6, wherein the step of controlling the operation of the outdoor unit according to the target set temperature includes:

determining an energy demand value of the indoor unit according to a temperature difference value between a preset indoor temperature and the target set temperature;

and controlling the outdoor unit to operate according to the energy demand.

8. A control apparatus, the control apparatus comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program being configured to implement the steps of the control method of an outdoor unit according to any one of claims 1 to 7.

9. The control device of claim 8, wherein the control device comprises a 24V controller.

10. An air conditioner comprising an outdoor unit and an indoor unit, the outdoor unit comprising the control device according to claim 8 or 9.