Protection method and device for air conditioner wire controller, air conditioner controller and air conditioner system

Abstract

The invention discloses a protection method and device for an air conditioner wire controller, an air conditioner controller and an air conditioner system.The air conditioner comprises a switching power supply, the switching power supply comprises a first power supply output unit and a second power supply output unit, and the first power supply output unit is used for supplying power to at least part of low-voltage loads of the air conditioner; the protection method for the air conditioner wire controller comprises the steps that under the condition that an air conditioner is powered on, whether the wire controller is in a short-circuit state or not is detected; and if the wire controller is in the short-circuit state, load driving on the first power supply output unit is reduced, so that the output power of the second power supply output unit is reduced. According to the method, the total output power of the switching power supply is reduced by reducing the load driving of the first power supply output unit, so that the output power of the second power supply output unit is reduced, and the current impact on the wire controller during short circuit is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a protection method and device for an air conditioning wire controller, an air conditioning controller and an air conditioning system. Background Art

[0002] As the most important control entrance for central air conditioners, wire controllers are widely used in multi-split units, water units, duct units and other products. Due to the pre-installed nature of central air conditioner products, it is necessary to pre-embed the wire controller communication line or power line in advance. At present, mainstream manufacturers use two-wire carrier communication technology to achieve a shared physical connection line for power supply and communication. In order to prevent short circuits, overloads and other situations during the installation and wiring process, additional current detection circuits and control circuits are added to the relevant technologies, resulting in higher costs for air conditioners; and after the product is installed and delivered, it is also necessary to bear the risk of failure of the protection circuit and its components during the product life cycle. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present invention is to propose a protection method for an air conditioner wire controller, which reduces the total output power of the switching power supply by reducing the load drive of the first power supply output unit, thereby reducing the output power of the second power supply output unit, reducing the current impact of the wire controller during a short circuit, and realizing protection of the wire controller without adding additional protection circuits, which will not increase costs and will not bear the risk of failure of the protection circuit.

[0004] A second object of the present invention is to provide a computer-readable storage medium.

[0005] A third objective of the present invention is to provide an air conditioning controller.

[0006] A fourth objective of the present invention is to provide a protection device for an air conditioner wire controller.

[0007] A fifth object of the present invention is to provide an air conditioning system.

[0008] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the present invention, a protection method for an air conditioner wire controller is proposed, the air conditioner includes a switching power supply, the switching power supply includes a first power supply output unit and a second power supply output unit, the first power supply output unit is used to supply power to at least part of the low-voltage load of the air conditioner, and the second power supply output unit is used to supply power to the wire controller, the method includes: when the air conditioner is powered on, detecting whether the wire controller is in a short-circuit state; if the wire controller is in a short-circuit state, reducing the load drive to the first power supply output unit to reduce the output power of the second power supply output unit.

[0009] According to the protection method of the air conditioner wire controller of the embodiment of the present invention, when the air conditioner is powered on, it is detected whether the wire controller is in a short circuit state. If the wire controller is in a short circuit state, the load drive of the first power output unit is reduced to reduce the output power of the second power output unit, wherein the air conditioner includes a switching power supply, the switching power supply includes a first power output unit and a second power output unit, the first power output unit is used to supply power to at least part of the low-voltage load of the air conditioner, and the second power output unit is used to supply power to the wire controller. Thus, by reducing the load drive of the first power output unit, the output power of the first power output unit is reduced, the first power output unit is fed back to the controller of the switching power supply, so that the total output power of the switching power supply is reduced, thereby reducing the output power of the second power output unit, and since the voltage of the second power output unit remains unchanged, the current of the second power output unit is reduced, so that the current impact of the wire controller when it is short-circuited is reduced, and the wire controller is protected without adding an additional protection circuit, which will not increase the cost, and there is no risk of failure of the protection circuit.

[0010] According to an embodiment of the present invention, detecting whether the wire controller is in a short-circuit state includes: determining that the wire controller is in a short-circuit state when abnormal communication between the wire controller and a corresponding air conditioner indoor unit is detected.

[0011] According to an embodiment of the present invention, after detecting that the communication between the wire controller and the corresponding indoor unit of the air conditioner is normal, the method further includes: controlling the load of the first power supply output unit to drive normally.

[0012] According to an embodiment of the present invention, after reducing the load driving of the first power output unit, the method further includes: if the communication between the wire controller and the corresponding air conditioner indoor unit returns to normal, controlling the load driving of the first power output unit to be normal.

[0013] According to an embodiment of the present invention, before detecting whether the wire controller is in a short-circuit state, the method further includes: supplying power to the wire controller through a second power supply output unit.

[0014] According to one embodiment of the present invention, the load of the first power output unit includes at least one of a pumping device, an electronic expansion valve and a wind sweeping panel.

[0015] To achieve the above-mentioned purpose, according to a second aspect of the present invention, a computer-readable storage medium is provided, on which a protection program for an air conditioner wired controller is stored. When the program is executed by a processor, a protection method for an air conditioner wired controller according to any of the aforementioned embodiments is implemented.

[0016] According to the computer-readable storage medium of an embodiment of the present invention, by executing a computer program of the above-mentioned air-conditioning wire controller protection method, the total output power of the switching power supply is reduced by reducing the load drive to the first power supply output unit, thereby reducing the output power of the second power supply output unit, and reducing the current impact on the wire controller during a short circuit, thereby achieving protection of the wire controller without adding additional protection circuits, without increasing costs, and without bearing the risk of failure of the protection circuit.

[0017] To achieve the above-mentioned purpose, an air-conditioning controller is proposed according to an embodiment of the third aspect of the present invention, comprising: a memory, a processor, and a protection program for the air-conditioning wire controller stored in the memory and runnable on the processor. When the processor executes the program, the protection method for the air-conditioning wire controller of any of the aforementioned embodiments is implemented.

[0018] According to the air-conditioning controller of the embodiment of the present invention, the computer program of the protection method of the above-mentioned air-conditioning wire controller is executed by the processor, and the total output power of the switching power supply is reduced by reducing the load drive to the first power supply output unit, thereby reducing the output power of the second power supply output unit, and reducing the current impact on the wire controller during short circuit, thereby achieving protection of the wire controller without adding additional protection circuits, without increasing costs, and without bearing the risk of failure of the protection circuit.

[0019] To achieve the above-mentioned purpose, according to an embodiment of the fourth aspect of the present invention, a protection device for an air conditioner wire controller is proposed, the air conditioner includes a switching power supply, the switching power supply includes a first power supply output unit and a second power supply output unit, the first power supply output unit is used to supply power to at least part of the low-voltage load of the air conditioner, and the second power supply output unit is used to supply power to the wire controller, the protection device includes: a detection module, which is used to detect whether the wire controller is in a short-circuit state when the air conditioner is powered on; and a control module, which is used to reduce the load drive to the first power supply output unit when the wire controller is in a short-circuit state, so as to reduce the output power of the second power supply output unit.

[0020] According to the protection device of the air conditioner wire controller of the embodiment of the present invention, when the air conditioner is powered on, the detection module detects whether the wire controller is in a short-circuit state, and when the wire controller is in a short-circuit state, the control module reduces the load drive of the first power output unit to reduce the output power of the second power output unit, wherein the air conditioner includes a switching power supply, the switching power supply includes a first power output unit and a second power output unit, the first power output unit is used to supply power to at least part of the low-voltage load of the air conditioner, and the second power output unit is used to supply power to the wire controller. Thus, by reducing the load drive of the first power output unit, the output power of the first power output unit is reduced, and the first power output unit feeds back to the controller of the switching power supply, so that the total output power of the switching power supply is reduced, thereby indirectly reducing the output power of the second power output unit, and therefore, the current impact of the wire controller when it is short-circuited is reduced, and the wire controller is protected without adding an additional protection circuit, which does not increase the cost, and does not need to bear the risk of failure of the protection circuit.

[0021] To achieve the above-mentioned purpose, an air-conditioning system is proposed according to an embodiment of the fifth aspect of the present invention, comprising: an air-conditioning outdoor unit; a plurality of air-conditioning indoor units; a wire controller, the wire controller corresponding to at least one air-conditioning indoor unit; a switching power supply, the switching power supply comprising a first power supply output unit and a second power supply output unit, the first power supply output unit being used to supply power to at least part of the low-voltage load of the air-conditioning system, and the second power supply output unit being used to supply power to the wire controller; a controller being configured to detect whether the wire controller is in a short-circuit state when the air-conditioning system is powered on, and to reduce the load drive to the first power supply output unit when the wire controller is in a short-circuit state, so as to reduce the output power of the second power supply output unit.

[0022] According to the air-conditioning system of the embodiment of the present invention, the total output power of the switching power supply is reduced by reducing the load drive to the first power supply output unit, thereby reducing the output power of the second power supply output unit, reducing the current impact on the wire controller during a short circuit, and protecting the wire controller without adding additional protection circuits, thereby not increasing costs and without the risk of failure of the protection circuit.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a partial circuit diagram of a switching power supply according to an embodiment of the present invention;

[0025] Figure 2 is a flow chart of a method for protecting an air conditioner wire controller according to an embodiment of the present invention;

[0026] Figure 3 is a flow chart of a method for protecting an air conditioner wire controller according to a specific embodiment of the present invention;

[0027] Figure 4 is a system schematic diagram of an air conditioning controller according to an embodiment of the present invention;

[0028] Figure 5 1 is a schematic structural diagram of a protection device for an air conditioner wire controller according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The following describes a method and device for protecting an air conditioner wire controller, an air conditioner controller, an air conditioner system, and a storage medium according to embodiments of the present invention with reference to the accompanying drawings.

[0031] The air conditioner includes a switching power supply, such as Figure 1 As shown, the switching power supply includes a first power output unit 10 and a second power output unit 20. The first power output unit 10 is used to supply power to at least part of the low-voltage load (not shown) of the air conditioner, and the second power output unit 20 is used to supply power to the wire controller (not shown).

[0032] Specifically, the first power supply output unit 10 is the main feedback loop of the switching power supply. The first voltage VCC1 and the second voltage VCC2 of the first power supply output unit 10 supply power to at least part of the low-voltage load and serve as the feedback loop of the switching power supply. When the first power supply output unit 10 drives a large number of loads, the output power required by the first power supply output unit 10 is large, which will be fed back to the controller of the switching power supply (not shown), so that the output power of the switching power supply is increased to meet the needs of the first power supply output unit 10. The third voltage VCC3 of the second power supply unit supplies power to the wire controller. Because the second power supply unit 20 is not the feedback loop of the switching power supply, the second power supply unit 20 cannot feed back the output power required by the second power supply unit 20 to the controller of the switching power supply. Therefore, the output power of the switching power supply does not change with the output power of the second power supply unit 20. When the first power supply output unit 10 has no load or a small load, the output power required by the first power supply output unit 10 is P3, and the first power supply output unit 10 feeds back the output power P3 to the controller of the switching power supply. Because the output power P3 is low, the controller of the switching power supply reduces the total output power of the switching power supply, thereby reducing the maximum output power of the second power supply output unit 20 to P4. When the load of the first power supply output unit 10 is large, the output power of the first power supply output unit 10 is P5, P5>P3, so the total output power of the switching power supply increases, thereby increasing the maximum output power of the second power supply output unit 20 to P6.

[0033] In some embodiments, the load of the first power output unit 10 includes at least one of a pumping device, an electronic expansion valve, and a wind sweeping panel.

[0034] It is understandable that the load of the first power output unit 10 is a weak current load. In practical applications, the load of the first power output unit 10 is not limited to the above devices, but may also include a display panel, a temperature sensor, etc., which is not specifically limited here.

[0035] Figure 2 FIG. 1 is a flow chart of a method for protecting an air conditioner wire controller according to an embodiment of the present invention. Figure 2 As shown, the protection method of the air conditioner wire controller includes the following steps:

[0036] S101, when the air conditioner is powered on, detecting whether the wire controller is in a short circuit state.

[0037] Specifically, in the related art, when the air conditioner is powered on, the air conditioner controller will be initialized first, and then control the load to perform a reset action, so that the load of the first power supply output unit increases. The first power supply output unit, as a feedback loop of the switching power supply, feeds back the required output power to the switching unit, and the switching unit increases the total output power, which indirectly increases the maximum output power of the second power supply output unit. Therefore, the current impact on the wire controller is relatively large, causing the wire controller wiring to be short-circuited or virtually short-circuited, thereby causing the wire controller to be in a short-circuit state. Therefore, when the air conditioner is powered on, it is necessary to detect whether the wire controller is in a short-circuit state.

[0038] In some embodiments, detecting whether the wire controller is in a short-circuit state includes: determining that the wire controller is in a short-circuit state when abnormal communication between the wire controller and a corresponding air conditioner indoor unit is detected.

[0039] Specifically, when the wire controller is in a short-circuit state, the wire controller and the corresponding air conditioner indoor unit cannot perform normal communication signal transmission. Therefore, it is possible to determine whether the wire controller is in a short-circuit state by detecting the communication status of the wire controller and the corresponding air conditioner indoor unit. If the communication between the wire controller and the corresponding air conditioner indoor unit is abnormal, the wire controller has a short circuit or virtual short, and the wire controller is in a short-circuit state; if the communication between the wire controller and the corresponding air conditioner indoor unit is normal, the wire controller does not have a short circuit or virtual short.

[0040] In the above embodiment, by detecting the communication status between the wire controller and the corresponding air conditioner indoor unit, it is determined whether the wire controller is in a short-circuit state. There is no need to add an additional current detection circuit, which will not increase the cost of the air conditioner and there is no risk of current detection circuit failure.

[0041] In some embodiments, after detecting that the communication between the wire controller and the corresponding air conditioner indoor unit is normal, the method further includes: controlling the load of the first power supply output unit to drive normally.

[0042] That is to say, the communication between the wire controller and the corresponding air-conditioning indoor unit is normal, indicating that there is no short circuit or virtual short in the wire controller. Therefore, the load of the first power supply output unit can be controlled to drive normally. First, the load is controlled to perform a reset action, and then the load is controlled to perform a corresponding action according to the control instruction.

[0043] S102: If the wire controller is in a short-circuit state, reducing the load drive on the first power output unit to reduce the output power of the second power output unit.

[0044] Specifically, the load of the first power supply output unit is reduced, and the output power required by the first power supply output unit is reduced. Therefore, the first power supply output unit feeds back the required output power to the switching power supply, so that the total output power of the switching power supply is reduced, thereby indirectly reducing the output power of the second power supply output unit, so that the current impact on the wire controller during a short circuit is reduced.

[0045] In the above embodiment, by reducing the load drive on the first power supply output unit, the total output power of the switching power supply is reduced, thereby indirectly reducing the output power of the second power supply output unit, so that the current impact on the line controller during a short circuit is reduced, thereby achieving protection of the line controller without adding additional protection circuits, without increasing costs, and without the risk of failure of the protection circuit.

[0046] In some embodiments, after reducing the load driving of the first power supply output unit, the method further includes: if the communication between the wire controller and the corresponding air conditioner indoor unit returns to normal, controlling the load driving of the first power supply output unit to be normal.

[0047] That is, when the communication between the wire controller and the corresponding air conditioner indoor unit returns to normal, it indicates that the wire controller has returned to normal from the short circuit state, and therefore, the load drive of the first power supply output unit can be controlled normally.

[0048] In some embodiments, before detecting whether the wire controller is in a short circuit state, the method further includes: supplying power to the wire controller through a second power supply output unit.

[0049] It is understandable that if the second power supply output unit does not supply power to the wire controller normally, the wire controller cannot communicate normally with the air conditioner indoor unit, which may lead to misjudgment. Therefore, after the air conditioner is powered on, the air conditioner controller will be initialized and power the wire controller through the second power supply output unit to avoid misjudgment.

[0050] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods:

[0051] like Figure 3 As shown, the protection method of the air conditioner wire controller includes the following steps:

[0052] S201, the air conditioner is powered on.

[0053] S202, supplying power to the wire controller through the second power supply output unit.

[0054] S203, detecting whether the communication between the wire controller and the corresponding air conditioner indoor unit is normal. If the communication between the wire controller and the corresponding air conditioner indoor unit is normal, executing step S204; if the communication between the wire controller and the corresponding air conditioner indoor unit is abnormal, executing step S205.

[0055] S204, controlling the load of the first power output unit to drive normally.

[0056] S205, stop driving the load of the first power output unit.

[0057] In the above embodiment, by detecting the communication status between the wire controller and the corresponding air-conditioning indoor unit, it is determined whether the wire controller is in a short-circuit state, and there is no need to add an additional current detection circuit. In addition, by reducing the load drive to the first power supply output unit, the output power of the second power supply output unit is reduced, so that the current impact on the wire controller during a short circuit is reduced, and there is no need to add an additional protection circuit. Therefore, the cost of the air conditioner is low, and there is no risk of failure of the current detection circuit and the protection circuit.

[0058] In summary, according to the protection method of the air conditioner wire controller according to the embodiment of the present invention, the output power of the first power supply output unit is reduced by reducing the load drive on the first power supply output unit. The first power supply output unit feeds back to the controller of the switching power supply, so that the total output power of the switching power supply is reduced, thereby indirectly reducing the output power of the second power supply output unit. Therefore, the current impact on the wire controller during a short circuit is reduced, and the wire controller is protected without adding additional protection circuits, which will not increase costs and does not have to bear the risk of failure of the protection circuit.

[0059] Corresponding to the above embodiments, an embodiment of the present invention further provides a computer-readable storage medium on which a protection program for an air conditioner wire controller is stored. When the program is executed by a processor, the protection method for the air conditioner wire controller of any of the above embodiments is implemented.

[0060] According to the computer-readable storage medium of an embodiment of the present invention, by executing a computer program of the above-mentioned air-conditioning wire controller protection method, the total output power of the switching power supply is reduced by reducing the load drive to the first power supply output unit, thereby reducing the output power of the second power supply output unit, and reducing the current impact on the wire controller during a short circuit, thereby achieving protection of the wire controller without adding additional protection circuits, without increasing costs, and without bearing the risk of failure of the protection circuit.

[0061] Corresponding to the above embodiment, the embodiment of the present invention further provides an air conditioning controller. Figure 4 As shown, the air conditioning controller 100 includes: a memory 110, a processor 120, and a protection program for the air conditioning wire controller stored in the memory 110 and executable on the processor 120. When the processor 120 executes the program, the protection method for the air conditioning wire controller of any of the aforementioned embodiments is implemented.

[0062] According to the air-conditioning controller of the embodiment of the present invention, the computer program of the protection method of the above-mentioned air-conditioning wire controller is executed by the processor, and the total output power of the switching power supply is reduced by reducing the load drive to the first power supply output unit, thereby reducing the output power of the second power supply output unit, and reducing the current impact on the wire controller during short circuit, thereby achieving protection of the wire controller without adding additional protection circuits, without increasing costs, and without bearing the risk of failure of the protection circuit.

[0063] Corresponding to the above embodiment, the embodiment of the present invention further provides a protection device for an air conditioner wire controller. The air conditioner includes a switching power supply, such as Figure 1 As shown, the switching power supply includes a first power output unit 10 and a second power output unit 20. The first power output unit 10 is used to supply power to at least part of the low-voltage load of the air conditioner, and the second power output unit 20 is used to supply power to the wire controller. Figure 5 As shown, the protection device includes: a detection module 30 and a control module 40 .

[0064] Among them, the detection module 30 is used to detect whether the wire controller is in a short-circuit state when the air conditioner is powered on; the control module 40 is used to reduce the load drive to the first power supply output unit when the wire controller is in a short-circuit state to reduce the output power of the second power supply output unit.

[0065] In some embodiments, the detection module 40 is further used to: determine that the wire controller is in a short-circuit state when abnormal communication between the wire controller and the corresponding air-conditioning indoor unit is detected.

[0066] In some embodiments, the control module 40 is further used to: after detecting that the communication between the wire controller and the corresponding air conditioner indoor unit is normal, control the load of the first power supply output unit to be driven normally.

[0067] In some embodiments, the control module 40 is further used to: after reducing the load drive on the first power supply output unit, if the communication between the wire controller and the corresponding air conditioner indoor unit returns to normal, control the load drive of the first power supply output unit to be normal.

[0068] In some embodiments, the control module 40 is further configured to: before detecting whether the wire controller is in a short-circuit state, supply power to the wire controller through the second power supply output unit.

[0069] In some embodiments, the load of the first power output unit includes at least one of a pumping device, an electronic expansion valve, and a wind sweeping panel.

[0070] It should be noted that the specific implementation of the protection device of the air conditioner wire controller in the embodiment of the present invention corresponds to the specific implementation of the protection method of the air conditioner wire controller in the aforementioned embodiment of the present invention, and will not be repeated here.

[0071] According to the protection device of the air conditioner wire controller according to the embodiment of the present invention, the output power of the first power supply output unit is reduced by reducing the load drive on the first power supply output unit. The first power supply output unit feeds back to the controller of the switching power supply, so that the total output power of the switching power supply is reduced, thereby indirectly reducing the output power of the second power supply output unit. Therefore, the current impact on the wire controller during short circuit is reduced, and the wire controller is protected without adding additional protection circuits, which does not increase costs and does not have to bear the risk of failure of the protection circuit.

[0072] Corresponding to the above embodiment, an embodiment of the present invention further provides an air conditioning system. The air conditioning system includes: an air conditioning outdoor unit, a plurality of air conditioning indoor units, a wired controller, a switch power supply and a controller.

[0073] Among them, the wire controller corresponds to at least one indoor unit of the air conditioner; the switching power supply includes a first power supply output unit and a second power supply output unit, the first power supply output unit is used to supply power to at least part of the low-voltage load of the air-conditioning system, and the second power supply output unit is used to supply power to the wire controller; the controller is configured to detect whether the wire controller is in a short-circuit state when the air-conditioning system is powered on, and when the wire controller is in a short-circuit state, reduce the load drive to the first power supply output unit to reduce the output power of the second power supply output unit.

[0074] In some embodiments, the controller is further configured to determine that the wire controller is in a short-circuit state when abnormal communication between the wire controller and the corresponding air conditioner indoor unit is detected.

[0075] In some embodiments, the controller is further configured to control the load of the first power supply output unit to drive normally after detecting that the communication between the wire controller and the corresponding air conditioner indoor unit is normal.

[0076] In some embodiments, the controller is further configured to control the load of the first power output unit to be driven normally if the communication between the wire controller and the corresponding air conditioner indoor unit returns to normal after reducing the load drive of the first power output unit.

[0077] In some embodiments, the controller is further configured to supply power to the wire controller through the second power supply output unit before detecting whether the wire controller is in a short circuit state.

[0078] In some embodiments, the load of the first power output unit includes at least one of a pumping device, an electronic expansion valve, and a wind sweeping panel.

[0079] It should be noted that the specific implementation of the air conditioning system in the embodiment of the present invention corresponds one to one with the specific implementation of the protection method of the air conditioning wire controller in the aforementioned embodiment of the present invention, and will not be described in detail here.

[0080] According to the air-conditioning system of the embodiment of the present invention, the total output power of the switching power supply is reduced by reducing the load drive on the first power supply output unit, thereby reducing the output power of the second power supply output unit, reducing the current impact on the wire controller during a short circuit, and protecting the wire controller without adding additional protection circuits, thereby not increasing costs and without the risk of failure of the protection circuit.

[0081] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0082] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0084] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present invention can explicitly or implicitly indicate that the embodiment includes at least one of the features. In the description of the present invention, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0085] In the present invention, unless otherwise clearly specified or limited in the embodiments, the terms "installed", "connected", "connected" and "fixed" etc. in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific implementation situation.

[0086] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for protecting an air conditioner wire controller, characterized in that: The air conditioner includes a switching power supply, the switching power supply includes a first power output unit and a second power output unit, the first power output unit is used to supply power to at least part of the low-voltage load of the air conditioner, and the second power output unit is used to supply power to the wire controller, and the method includes: When the air conditioner is powered on, detecting whether the wire controller is in a short-circuit state; If the wire controller is in a short-circuit state, the load drive on the first power output unit is reduced to reduce the output power of the second power output unit.

2. The method according to claim 1, characterized in that Detecting whether the wire controller is in a short circuit state includes: In the case where a communication abnormality is detected between the wire controller and the corresponding air conditioner indoor unit, it is determined that the wire controller is in a short-circuit state.

3. The method according to claim 2, characterized in that After detecting that the communication between the wire controller and the corresponding air conditioner indoor unit is normal, the method further includes: Control the load of the first power output unit to drive normally.

4. The method according to claim 2, characterized in that: After reducing the load driving of the first power output unit, the method further includes: If the communication between the wire controller and the corresponding air conditioner indoor unit is restored to normal, the load of the first power output unit is controlled to be driven normally.

5. The method according to claim 1, characterized in that Before detecting whether the wire controller is in a short-circuit state, the method further includes: The wire controller is powered by the second power output unit.

6. The method according to any one of claims 1 to 5, characterized in that The load of the first power output unit includes at least one of a pumping device, an electronic expansion valve and a wind sweeping panel.

7. A computer-readable storage medium, characterized in that: A protection program for the air conditioner wire controller is stored thereon, and when the program is executed by the processor, the protection method for the air conditioner wire controller according to any one of claims 1-6 is implemented.

8. An air conditioning controller, characterized in that: include: A memory, a processor, and a protection program for an air conditioner wire controller stored in the memory and executable on the processor, wherein when the processor executes the program, a protection method for an air conditioner wire controller according to any one of claims 1 to 6 is implemented.

9. A protective device for an air conditioner wire controller, characterized in that: The air conditioner includes a switching power supply, the switching power supply includes a first power supply output unit and a second power supply output unit, the first power supply output unit is used to supply power to at least part of the low-voltage load of the air conditioner, and the second power supply output unit is used to supply power to the wire controller, and the protection device includes: A detection module, used for detecting whether the wire controller is in a short-circuit state when the air conditioner is powered on; The control module is used to reduce the load drive on the first power supply output unit when the wire controller is in a short-circuit state, so as to reduce the output power of the second power supply output unit.

10. An air conditioning system, characterized in that: include: Air conditioner outdoor unit; Multiple air conditioner indoor units; A wired controller, the wired controller corresponding to at least one indoor unit of the air conditioner; A switching power supply, the switching power supply comprising a first power output unit and a second power output unit, the first power output unit being used to supply power to at least part of the low-voltage loads of the air-conditioning system, and the second power output unit being used to supply power to the wire controller; The controller is configured to detect whether the wire controller is in a short-circuit state when the air-conditioning system is powered on, and to reduce the load drive on the first power supply output unit when the wire controller is in the short-circuit state to reduce the output power of the second power supply output unit.

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