Protection control method for air conditioner outdoor unit, air conditioner outdoor unit and computer storage medium

Abstract

The present invention discloses a protection and control method for an air conditioner outdoor unit, wherein the exhaust temperature controller, high-pressure switch, and low-pressure switch of the air conditioner outdoor unit are connected in series and share a common external port. The method comprises: detecting and obtaining the current current value of the current protection port of the air conditioner outdoor unit; detecting whether the external port of the air conditioner outdoor unit, in which the exhaust temperature controller, high-pressure switch, and low-pressure switch are connected in series, is in an off state, and if the external port is in an off state, any one of the exhaust temperature controller, high-pressure switch, and low-pressure switch is in an off state; and if so, identifying the current operating state of the air conditioner outdoor unit based on the current value. The present invention also discloses an air conditioner outdoor unit and a computer storage medium, which reduce the cost of the air conditioner outdoor unit and facilitate identification of the current protection mode of the air conditioner outdoor unit.

Description

[0001] This application is a divisional application with application number 201810641203.7. The application date of the parent case is June 20, 2018. The name of the invention of the parent case is: Protection and control method of air-conditioning outdoor unit, air-conditioning outdoor unit and computer storage medium. Technical Field

[0002] The present invention relates to the technical field of household air conditioners, and in particular to a protection control method for an air conditioner outdoor unit, the air conditioner outdoor unit, and a computer storage medium. Background Art

[0003] There are many different brands of air conditioners on the market. In order for a factory-made air conditioner to gain a foothold in the market, price plays a crucial role, not only in terms of quality, but also in terms of quality. Consumers tend to buy products that are good quality and inexpensive. Therefore, it is very important for manufacturers to control the factory cost of air conditioners.

[0004] Currently, exhaust and high-voltage protection functions on the mainboard of an air conditioner's outdoor unit are provided on a single external port, while low-voltage and current protection functions are provided on separate external ports. This occupies a large space on the mainboard, increases costs, and complicates the corresponding circuit board design, resulting in low production efficiency. Furthermore, the mainboard must identify whether the outdoor unit is currently in high-voltage or low-voltage protection mode based on information received from each port, making this identification method cumbersome. Summary of the Invention

[0005] The main purpose of the present invention is to provide a protection control method for an air-conditioning outdoor unit, an air-conditioning outdoor unit and a computer storage medium, aiming to solve the technical problems that the traditional air-conditioning outdoor unit motherboard has a large space, high cost and is complicated in identifying the current protection method of the air-conditioning outdoor unit through the information feedback from each port received by the motherboard.

[0006] To achieve the above object, the present invention provides a protection and control method for an air conditioner outdoor unit, wherein the exhaust temperature controller, the high-pressure pressure switch, and the low-pressure pressure switch of the air conditioner outdoor unit are connected in series and share an external port. The protection and control method for the air conditioner outdoor unit comprises the following steps:

[0007] Detecting and obtaining a current value of a current protection port of the air conditioner outdoor unit;

[0008] detecting whether the state of the external port connected in series with the exhaust temperature controller, the high-pressure switch, and the low-pressure switch of the air conditioner outdoor unit is in a disconnected state, and when the state of the external port is in a disconnected state, any one of the exhaust temperature controller, the high-pressure switch, and the low-pressure switch is in a disconnected state;

[0009] If so, the current working state of the air conditioner outdoor unit is identified according to the current value.

[0010] Preferably, the step of identifying the current working state of the air conditioner outdoor unit according to the current value includes:

[0011] When the external port is in a disconnected state and the current value is less than a first preset threshold, it is determined that the current working state of the air conditioner outdoor unit is a low voltage protection state.

[0012] Preferably, the step of identifying the current working state of the air conditioner outdoor unit according to the current value further includes:

[0013] When the external port is in a disconnected state and the current value is greater than a second preset threshold, it is determined that the current working state of the air conditioner outdoor unit is a high voltage protection state, wherein the second preset threshold is greater than the first preset threshold.

[0014] Preferably, the method further comprises:

[0015] When it is detected that the state of the external port is the connected state, if the current value is greater than or equal to the first preset threshold and less than or equal to the second preset threshold, it is determined that the current working state of the air conditioner outdoor unit is the normal working state.

[0016] Preferably, the first preset threshold is smaller than the current value of the air conditioner outdoor unit during normal operation.

[0017] Preferably, the second preset threshold is greater than the current value of the air conditioner outdoor unit during normal operation.

[0018] In addition, to achieve the above-mentioned purpose, the present invention also provides an air-conditioning outdoor unit, which includes a memory, a processor, and a computer program stored on the memory and runnable on the processor. When the computer program is executed by the processor, the steps of the protection control method of the air-conditioning outdoor unit as described above are implemented.

[0019] In addition, to achieve the above-mentioned purpose, the present invention also provides a computer storage medium, on which a protection control program for an air-conditioning outdoor unit is stored. When the protection control program for the air-conditioning outdoor unit is executed by the processor, the steps of the protection control method for the air-conditioning outdoor unit as described above are implemented.

[0020] The present invention proposes a protection control method for an air conditioner outdoor unit, an air conditioner outdoor unit, and a computer storage medium. The method detects and obtains the current current value of the air conditioner outdoor unit's current protection port, detects whether the state of the air conditioner outdoor unit's external port, which includes the exhaust thermostat, high-pressure switch, and low-pressure switch connected in series, is disconnected, and then identifies the air conditioner outdoor unit's current operating state based on the current value. When the external port is disconnected, any one of the exhaust thermostat, high-pressure switch, and low-pressure switch is disconnected. The current operating state of the air conditioner outdoor unit can be identified based on the current values ​​of one external port and the current protection port, reducing the number of external ports required, lowering the cost of the air conditioner outdoor unit, and conveniently identifying the current protection mode of the air conditioner outdoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the terminal structure of the hardware operating environment involved in the embodiment of the present invention;

[0022] Figure 2 1. A flow chart of a first embodiment of a protection control method for an outdoor unit of an air conditioner according to the present invention;

[0023] Figure 3 This is a schematic diagram of the external port of the air conditioner outdoor unit;

[0024] Figure 4 1. It is a flow chart of a second embodiment of a protection control method for an air conditioner outdoor unit of the present invention;

[0025] Figure 5 1. It is a flow chart of a third embodiment of a protection control method for an outdoor unit of an air conditioner according to the present invention;

[0026] Figure 6 1 is a flow chart of a fourth embodiment of a protection control method for an air conditioner outdoor unit according to the present invention.

[0027] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The main solutions of the embodiments of the present invention are:

[0030] Detecting and obtaining a current value of a current protection port of the air conditioner outdoor unit;

[0031] Determine the status of the external port of the exhaust thermostat, the high-pressure switch, and the low-pressure switch connected in series on the outdoor unit of the air conditioner;

[0032] The current working state of the air conditioner outdoor unit is identified according to the current value and the state of the external port.

[0033] In the prior art, exhaust and high-voltage protection on the air conditioner's outdoor unit motherboard are provided with a single external port, while low-voltage and current protection are provided with separate external ports. This occupies a large space on the outdoor unit motherboard, increases costs, and complicates the corresponding circuit board design, resulting in low production efficiency. Furthermore, the motherboard must use feedback from each port to identify whether the outdoor unit is currently in high-voltage or low-voltage protection mode, making this identification method cumbersome.

[0034] The present invention provides a solution that detects and obtains the current value of the current protection port of an air conditioner outdoor unit, determines the status of the external port (the exhaust thermostat, high-pressure switch, and low-pressure switch connected in series), and then identifies the current operating status of the air conditioner outdoor unit based on the current value and the status of the external port. This reduces the cost of the air conditioner outdoor unit and facilitates identification of the current protection mode of the air conditioner outdoor unit.

[0035] like Figure 1 As shown, Figure 1 It is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiment of the present invention.

[0036] In the embodiment of the present invention, the terminal is an outdoor unit of an air conditioner.

[0037] like Figure 1 As shown, the terminal may include: a processor 1001, such as a CPU, a compressor 1004, a four-way valve 1003, a memory 1005, a condenser 1002, and an evaporator 1006. The memory 1005 may be a high-speed RAM memory or a non-volatile memory, such as a disk storage device. Alternatively, the memory 1005 may be a storage device independent of the processor 1001.

[0038] Those skilled in the art will understand that Figure 1 The terminal structure shown in the figure does not constitute a limitation to the terminal, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0039] like Figure 1 As shown, the memory 1005 as a computer storage medium may include a network communication module and a protection control program for the air conditioner outdoor unit.

[0040] exist Figure 1 In the terminal shown, the processor 1001 can be used to call the protection control program of the air conditioner outdoor unit stored in the memory 1005 and perform the following operations:

[0041] Detecting and obtaining a current value of a current protection port of the air conditioner outdoor unit;

[0042] Determine the status of the external port of the exhaust thermostat, the high-pressure switch, and the low-pressure switch connected in series on the outdoor unit of the air conditioner;

[0043] The current working state of the air conditioner outdoor unit is identified according to the current value and the state of the external port.

[0044] Furthermore, the processor 1001 may call the protection control program of the air conditioner outdoor unit stored in the memory 1005 and perform the following operations:

[0045] When the current value is less than a first preset threshold and the external port is in a disconnected state, it is determined that the current working state of the air conditioner outdoor unit is a low voltage protection state.

[0046] Furthermore, the processor 1001 may call the protection control program of the air conditioner outdoor unit stored in the memory 1005 and perform the following operations:

[0047] When the current value is greater than a second preset threshold and the external port is in a disconnected state, it is determined that the current working state of the air conditioner outdoor unit is a high voltage protection state, wherein the second preset threshold is greater than the first preset threshold.

[0048] Furthermore, the processor 1001 may call the protection control program of the air conditioner outdoor unit stored in the memory 1005 and perform the following operations:

[0049] When the current value is greater than or equal to a first preset threshold value and less than or equal to a second preset threshold value, it is determined that the current working state of the air-conditioning outdoor unit is a normal working state.

[0050] Furthermore, the processor 1001 may call the protection control program of the air conditioner outdoor unit stored in the memory 1005 and perform the following operations:

[0051] When it is detected that any one of the exhaust temperature controller, high-pressure pressure switch and low-pressure pressure switch of the air-conditioning outdoor unit is in the disconnected state, it is determined that the state of the external port of the exhaust temperature controller, high-pressure pressure switch and low-pressure pressure switch of the air-conditioning outdoor unit connected in series is the disconnected state.

[0052] Furthermore, the processor 1001 may call the protection control program of the air conditioner outdoor unit stored in the memory 1005 and perform the following operations:

[0053] The first preset threshold is smaller than a current value of the air conditioner outdoor unit during normal operation.

[0054] Furthermore, the processor 1001 may call the protection control program of the air conditioner outdoor unit stored in the memory 1005 and perform the following operations:

[0055] The second preset threshold is greater than the current value of the air conditioner outdoor unit during normal operation.

[0056] Reference Figure 2 , Figure 2 1. A flow chart of a first embodiment of a protection control method for an outdoor unit of an air conditioner according to the present invention;

[0057] This embodiment provides a protection control method for an air conditioner outdoor unit, which includes the following steps:

[0058] Step S10, detecting and obtaining the current value of the current protection port of the air conditioner outdoor unit;

[0059] In the present invention, Figure 3 As shown, the exhaust thermostat, high-pressure switch, and low-pressure switch of the air conditioner outdoor unit are connected in series and share a common external port. This reduces the space required for the air conditioner outdoor unit's mainboard and the number of components on the mainboard, thereby saving production costs. The current value of the air conditioner outdoor unit is obtained by detecting the current value of the current protection port.

[0060] Step S20, determining the status of the external port of the exhaust temperature controller, the high pressure switch, and the low pressure switch connected in series on the outdoor unit of the air conditioner;

[0061] Since the exhaust temperature controller, high-pressure pressure switch and low-pressure pressure switch of the air conditioner outdoor unit are connected in series, when it is detected that any one of the exhaust temperature controller, high-pressure pressure switch and low-pressure pressure switch of the air conditioner outdoor unit is in the disconnected state, it is determined that the state of the external port of the exhaust temperature controller, high-pressure pressure switch and low-pressure pressure switch of the air conditioner outdoor unit connected in series is the disconnected state.

[0062] Step S30 , identifying the current working state of the air conditioner outdoor unit according to the current value and the state of the external port.

[0063] In this embodiment, the current operating state of the air conditioner outdoor unit is identified by detecting the current value of the current protection port and the status of the external ports connected in series to the exhaust thermostat, high-pressure pressure switch, and low-pressure pressure switch of the air conditioner outdoor unit. The current operating state of the air conditioner outdoor unit herein includes the high-pressure protection state, the low-pressure protection state, and the normal operating state. The specific identification and determination methods will be described in detail in the second, third, and fourth embodiments.

[0064] It should be noted that the method of the present invention will not cause any impact on the air conditioner indoor unit.

[0065] The protection and control method for an air conditioner outdoor unit proposed in this embodiment detects and obtains the current value of the air conditioner outdoor unit's current protection port, determines the status of the air conditioner's external port, which is connected in series with the exhaust thermostat, high-pressure switch, and low-pressure switch. Based on this current value and the status of the external ports, the current operating status of the air conditioner outdoor unit is identified. This reduces the cost of the air conditioner outdoor unit and facilitates identification of the current protection mode of the air conditioner outdoor unit.

[0066] Further, refer to Figure 4 Based on the first embodiment, a second embodiment of the protection control method for the air conditioner outdoor unit of the present invention is proposed. In this embodiment, step S30 includes:

[0067] Step S31 : When the current value is less than a first preset threshold and the external port is in a disconnected state, it is determined that the current working state of the air conditioner outdoor unit is a low voltage protection state.

[0068] In this embodiment, the current value of the air conditioner outdoor unit during normal operation is preset to I0. Taking into account the temperature change of the air conditioner indoor unit, a current threshold ΔI is preset. If the current value detected at the current protection port is less than I0-ΔI, and the external port connected in series with the exhaust thermostat, high-pressure switch, and low-pressure switch is disconnected, then according to the system logic, the air conditioner outdoor unit is in a low-pressure protection state. Here, I0-ΔI is the first preset threshold, which is less than the current value I0 during normal operation of the air conditioner outdoor unit.

[0069] In the technical solution disclosed in this embodiment, the current working status of the air-conditioning outdoor unit is quickly identified by detecting the current value of the current protection port and the status of the external port of the exhaust temperature controller, high-pressure pressure switch and low-pressure pressure switch of the air-conditioning outdoor unit in series, which is both convenient and accurate.

[0070] Further, refer to Figure 5 Based on the first embodiment, a third embodiment of the protection control method for the air conditioner outdoor unit of the present invention is proposed. In this embodiment, step S30 includes:

[0071] Step S32: When the current value is greater than a second preset threshold and the external port is in a disconnected state, it is determined that the current working state of the air conditioner outdoor unit is a high voltage protection state, wherein the second preset threshold is greater than the first preset threshold.

[0072] In this embodiment, the current value of the air conditioner outdoor unit during normal operation is preset to I0. Taking into account the temperature change of the air conditioner indoor unit, a current threshold ΔI is preset. If the current value detected at the current protection port is greater than I0 + ΔI, and the external port connected in series with the exhaust thermostat, high-pressure pressure switch, and low-pressure pressure switch is disconnected, then according to the system logic, the air conditioner outdoor unit is in a high-pressure protection state. Here, I0 + ΔI is a second preset threshold value, which is greater than the current value I0 during normal operation of the air conditioner outdoor unit.

[0073] Optionally, when the external port is in a disconnected state, if the current value is greater than or equal to the first preset threshold value and less than or equal to the second preset threshold value, it is determined that the high-pressure pressure switch and the low-pressure pressure switch are not the ones that cause the external port to be disconnected, but the exhaust thermostat. Therefore, it is determined that the exhaust thermostat is disconnected based on the exhaust protection triggering the air conditioner outdoor unit, and therefore the current working state of the air conditioner outdoor unit is the exhaust protection state.

[0074] In the technical solution disclosed in this embodiment, the current working status of the air-conditioning outdoor unit is quickly identified by detecting the current value of the current protection port and the status of the external port of the exhaust temperature controller, high-pressure pressure switch and low-pressure pressure switch of the air-conditioning outdoor unit in series, which is both convenient and accurate.

[0075] Further, refer to Figure 6 Based on the first embodiment, a fourth embodiment of the protection control method for the air conditioner outdoor unit of the present invention is proposed. In this embodiment, step S30 includes:

[0076] Step S33: When the current value is greater than or equal to the first preset threshold and less than or equal to the second preset threshold, it is determined that the current working state of the air conditioner outdoor unit is a normal working state.

[0077] In this embodiment, the current value of the air conditioner outdoor unit during normal operation is preset to I0. Considering the change in the temperature of the air conditioner indoor unit, a current threshold ΔI is preset. If the value range of the current value I detected at the current protection port is: I0-ΔI≤I≤I0+ΔI, the air conditioner outdoor unit is considered to be in normal working state.

[0078] In the technical solution disclosed in this embodiment, the current working status of the air conditioner outdoor unit is quickly identified by detecting the current value of the current protection port, which is both convenient and accurate.

[0079] In addition, an embodiment of the present invention also proposes an air-conditioning outdoor unit, which includes a memory, a processor, and a computer program stored on the memory and runnable on the processor. When the computer program is executed by the processor, the steps of the protection control method of the air-conditioning outdoor unit described in the above embodiment are implemented.

[0080] In addition, an embodiment of the present invention also proposes a computer storage medium, which stores a protection control program for an air conditioner outdoor unit. When the protection control program for the air conditioner outdoor unit is executed by the processor, the steps of the protection control method for the air conditioner outdoor unit described in the above embodiment are implemented.

[0081] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0082] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0083] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, cloud server, air conditioner, or network device, etc.) to execute the methods of various embodiments of the present invention.

[0084] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A protection control method for an air conditioner outdoor unit, characterized in that: The exhaust temperature controller, high-pressure switch, and low-pressure switch of the air conditioner outdoor unit are connected in series and share an external port. The protection control method of the air conditioner outdoor unit includes the following steps: Detecting and obtaining a current value of a current protection port of the air conditioner outdoor unit; detecting whether the state of the external port connected in series with the exhaust temperature controller, the high-pressure switch, and the low-pressure switch of the air conditioner outdoor unit is in a disconnected state, and when the state of the external port is in a disconnected state, any one of the exhaust temperature controller, the high-pressure switch, and the low-pressure switch is in a disconnected state; If yes, if the current value is greater than or equal to the first preset threshold and less than or equal to the second preset threshold, it is determined that the current working state of the air conditioner outdoor unit is the exhaust protection state; If not, if the current value is greater than or equal to the first preset threshold and less than or equal to the second preset threshold, it is determined that the current working state of the air-conditioning outdoor unit is a normal working state.

2. The protection control method for the air conditioner outdoor unit according to claim 1, characterized in that: The protection control method of the air conditioner outdoor unit further includes: When the external port is in a disconnected state and the current value is less than a first preset threshold, it is determined that the current working state of the air conditioner outdoor unit is a low voltage protection state.

3. The protection control method for the air conditioner outdoor unit according to claim 2, characterized in that: The protection control method of the air conditioner outdoor unit further includes: When the external port is in the disconnected state and the current value is greater than a second preset threshold, it is determined that the current working state of the air conditioner outdoor unit is a high-voltage protection state.

4. The protection control method for the outdoor unit of the air conditioner according to claim 2, characterized in that: The first preset threshold is smaller than a current value of the air conditioner outdoor unit during normal operation.

5. The protection control method for the outdoor unit of the air conditioner according to claim 3, characterized in that: The second preset threshold is greater than the current value of the air conditioner outdoor unit during normal operation.

6. An air conditioner outdoor unit, characterized in that: The air conditioner outdoor unit includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the protection control method for the air conditioner outdoor unit according to any one of claims 1 to 5 are implemented.

7. The air conditioner outdoor unit according to claim 6, wherein: The exhaust temperature controller, the high-pressure switch and the low-pressure switch of the air conditioner outdoor unit are connected in series and share an external port.

8. A computer storage medium, characterized in that The computer storage medium stores a protection control program for the air conditioner outdoor unit. When the protection control program for the air conditioner outdoor unit is executed by the processor of the air conditioner outdoor unit, the steps of the protection control method for the air conditioner outdoor unit according to any one of claims 1 to 5 are implemented.

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