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CN115654651B - Fault detection method, device and system of pressure switch and air conditioning equipment - Google Patents

Fault detection method, device and system of pressure switch and air conditioning equipment Download PDF

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Publication number
CN115654651B
CN115654651B CN202211242900.8A CN202211242900A CN115654651B CN 115654651 B CN115654651 B CN 115654651B CN 202211242900 A CN202211242900 A CN 202211242900A CN 115654651 B CN115654651 B CN 115654651B
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China
Prior art keywords
pressure switch
air conditioner
pressure
operation data
unit operation
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CN115654651A (en
Inventor
傅泓淘
刘静楠
林桂清
宋海川
徐甘来
刘旭杰
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN202211242900.8A priority Critical patent/CN115654651B/en
Publication of CN115654651A publication Critical patent/CN115654651A/en
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Abstract

The application discloses a fault detection method, device and system of a pressure switch and air conditioning equipment. Wherein the method comprises the following steps: acquiring unit operation data of an air conditioner; and determining whether the pressure switch of the air conditioner breaks down according to the unit operation data, so that whether the pressure switch of the air conditioner unit breaks down can be judged according to the analyzed unit operation data through a preset judgment condition of a system, the fault of the pressure switch does not need to be monitored manually, and the technical problem of low fault detection efficiency of the pressure switch can be solved.

Description

Fault detection method, device and system of pressure switch and air conditioning equipment
Technical Field
The application relates to the technical field of air conditioners, in particular to a fault detection method, device and system of a pressure switch and air conditioning equipment.
Background
The air conditioner pressure switch is arranged in the air conditioner condensation pipeline and is mainly used for detecting the pressure of the refrigerant in the air conditioner pipeline, and sometimes becomes a two-state pressure switch or a three-state pressure switch. The bi-state pressure means that it can detect high and low pressures, while the tri-state pressure switch can also detect medium pressure. The air conditioner pressure switch is used for monitoring the pressure of the refrigerant in the air conditioner pipeline and feeding back to the air conditioner controller.
The high-low pressure switch is used for switching off when the pressure of the refrigerant in the pipeline is too high, feeding signals back to the controller, and controlling the air conditioner compressor to stop working by the controller so as to prevent pipe explosion caused by the too high pressure; when the pressure of the refrigerant is too low, the low-voltage switch is turned off, and the controller receives the signal to know that the refrigerant is insufficient and the compressor does not work; the medium-voltage switch is used for closing the switch when the pressure in the refrigerant pipe is larger than the set value, and the controller sends out a high-speed electronic fan relay pull-down signal after receiving the signal, so that the high-speed electronic fan works.
It can be seen that the pressure switch is very important for the air conditioning unit, at present, whether the pressure switch of the air conditioning unit fails or not can be found by observing the pressure switch mainly by experienced after-sales personnel, and when the pressure switch fails, the pressure switch can not be found in time, so that the efficiency is low and the accuracy is low, the problem of the whole air conditioning unit is possibly caused, and a user or a manufacturer suffers from loss.
Aiming at the technical problem that the fault detection efficiency of the pressure switch is low, no effective solution is proposed at present.
Disclosure of Invention
The embodiment of the application provides a fault detection method, device and system of a pressure switch and air conditioning equipment, which are used for solving the technical problem of low fault detection efficiency of the pressure switch.
To solve the above technical problem, according to an aspect of the embodiments of the present application, there is provided a fault detection method for a pressure switch, including: acquiring unit operation data of an air conditioner; and determining whether the pressure switch of the air conditioner fails according to the unit operation data.
Optionally, determining whether the pressure switch of the air conditioner fails according to the unit operation data includes: analyzing the open-close state and the high-pressure value of a main alternating-current contactor of the compressor of the air conditioner from the unit operation data; and determining whether a pressure switch of the air conditioner fails according to the opening and closing state of the main alternating current contactor and the high-pressure value.
Optionally, the unit operation data carries an operation state of a high-pressure sensor, where determining whether the pressure switch of the air conditioner has a fault according to the opening and closing state of the main ac contactor and the high-pressure value includes: under the condition that the main alternating current contactor is in a closed state and the high-pressure sensor operates normally, if the high-pressure value is smaller than a high-pressure protection value, determining that the pressure switch fails; and if the high-pressure value is not smaller than the high-pressure protection value, determining that the pressure switch does not fail.
Optionally, determining whether the pressure switch of the air conditioner is faulty according to the open-close state of the main ac contactor and the high-pressure value includes: if the high-voltage pressure value is smaller than the following value when the main ac contactor is in the open state: determining that the pressure switch fails if the high-voltage protection value-high-voltage protection detection deviation is high; if the high pressure value is not less than: and if the high-voltage protection value-the high-voltage protection detection deviation is detected, determining that the pressure switch does not fail.
Optionally, after determining whether the pressure switch of the air conditioner fails according to the unit operation data, the method further includes: and sending alarm information and storing the fault information of the pressure switch into a database, wherein the alarm information is used for alarming the fault of the pressure switch.
Optionally, after determining whether the pressure switch of the air conditioner fails according to the unit operation data, the method further includes: and generating a pressure data line graph of a target period, wherein the target period is a period of time before and after the occurrence of the fault.
Optionally, after determining whether the pressure switch of the air conditioner fails according to the unit operation data, the method further includes: and (3) linking the fault unit with the associated unit according to the requirement so as to ensure the normal temperature control requirement.
According to another aspect of the embodiment of the present application, there is also provided a fault detection device of a pressure switch, including: the acquisition unit is used for acquiring unit operation data of the air conditioner; and the detection unit is used for determining whether the pressure switch of the air conditioner fails according to the unit operation data.
Optionally, the detection unit is further configured to: analyzing the open-close state and the high-pressure value of a main alternating-current contactor of the compressor of the air conditioner from the unit operation data; and determining whether a pressure switch of the air conditioner fails according to the opening and closing state of the main alternating current contactor and the high-pressure value.
Optionally, the unit operation data carries an operation state of the high pressure sensor, wherein the detection unit is further configured to: under the condition that the main alternating current contactor is in a closed state and the high-pressure sensor operates normally, if the high-pressure value is smaller than a high-pressure protection value, determining that the pressure switch fails; and if the high-pressure value is not smaller than the high-pressure protection value, determining that the pressure switch does not fail.
Optionally, the detection unit is further configured to: if the high-voltage pressure value is smaller than the following value when the main ac contactor is in the open state: determining that the pressure switch fails if the high-voltage protection value-high-voltage protection detection deviation is high; if the high pressure value is not less than: and if the high-voltage protection value-the high-voltage protection detection deviation is detected, determining that the pressure switch does not fail.
Optionally, the apparatus may further include: and the alarm unit is used for sending alarm information and storing the fault information of the pressure switch to a database after determining whether the pressure switch of the air conditioner has a fault according to the unit operation data, wherein the alarm information is used for alarming the fault of the pressure switch.
Optionally, the apparatus may further include: and the data processing unit is used for generating a pressure data line graph of a target period after determining whether the pressure switch of the air conditioner fails according to the unit operation data, wherein the target period is a period of time before and after the failure.
Optionally, the apparatus may further include: and the combined control unit is used for linking the faulty unit with the associated unit according to the requirement after determining whether the pressure switch of the air conditioner fails according to the unit operation data so as to ensure the normal temperature control requirement.
According to another aspect of the embodiment of the present application, there is also provided an air conditioning apparatus including the fault detection device of the pressure switch described above.
According to another aspect of the embodiment of the present application, there is also provided a fault detection system of a pressure switch, including: the air conditioner is provided with a DTU module and is used for sending unit operation data by utilizing the DTU module; the server is used for receiving the unit operation data of the air conditioner; and the cloud platform is used for determining whether the pressure switch of the air conditioner fails according to the unit operation data.
According to another aspect of the embodiments of the present application, there is also provided a computer-readable storage medium including a stored program which, when executed by a processor, implements the above-described method.
According to another aspect of the embodiment of the present application, there is also provided an electronic device, including: one or more processors; and a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the method described above.
According to one aspect of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the steps of any of the embodiments of the method described above.
By applying the technical scheme of the application, the unit operation data of the air conditioner are obtained; and determining whether the pressure switch of the air conditioner breaks down according to the unit operation data, so that whether the pressure switch of the air conditioner unit breaks down can be judged according to the analyzed unit operation data through a preset judgment condition of a system, the fault of the pressure switch does not need to be monitored manually, and the technical problem of low fault detection efficiency of the pressure switch can be solved.
Drawings
FIG. 1 is a flow chart of an alternative method of fault detection for a pressure switch in accordance with an embodiment of the present application;
FIG. 2 is a flow chart of an alternative method of fault detection for a pressure switch in accordance with an embodiment of the present application;
FIG. 3 is a schematic diagram of an alternative pressure switch fault detection device according to an embodiment of the present application;
fig. 4 is a block diagram of a structure of a terminal according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present application to describe certain technical features, these technical features should not be limited to these terms. These terms are only used to distinguish one from another.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or device comprising such elements.
Example 1
According to the fault detection scheme of the pressure switch of the air conditioning unit, whether the pressure switch of the air conditioning unit is faulty or not can be judged according to the analyzed unit operation data and the preset judgment conditions of the system, and an alarm is sent out to prompt when the fault is detected, so that subsequent loss is avoided. FIG. 1 is a flow chart of an alternative method of fault detection for a pressure switch, as shown in FIG. 1, according to an embodiment of the present application, the method comprising the steps of:
Step S101, unit operation data of an air conditioner are obtained.
And step S102, determining whether a pressure switch of the air conditioner fails according to the unit operation data.
Parameters such as the opening and closing state, the high-pressure value, the running state of a high-pressure sensor and the like of a main alternating-current contactor of a compressor of the air conditioner can be firstly analyzed from the unit running data, and then whether a pressure switch of the air conditioner fails or not is determined according to the opening and closing state of the main alternating-current contactor and the high-pressure value, and the method mainly comprises the following two conditions:
1) Under the condition that the main alternating current contactor is in a closed state and the high-pressure sensor operates normally, if the high-pressure value is smaller than a high-pressure protection value, determining that the pressure switch fails, and if the high-pressure value is not smaller than the high-pressure protection value, determining that the pressure switch does not fail;
2) If the high-voltage pressure value is smaller than the following value when the main ac contactor is in the open state: determining that the pressure switch fails if the high-voltage protection value-high-voltage protection detection deviation is high; if the high pressure value is not less than: and if the high-voltage protection value-the high-voltage protection detection deviation is detected, determining that the pressure switch does not fail.
Optionally, after determining whether the pressure switch of the air conditioner has a fault according to the unit operation data, alarm information may be sent and the fault information of the pressure switch may be stored in a database, where the alarm information is used to alarm the fault of the pressure switch.
Optionally, after determining whether the pressure switch of the air conditioner fails according to the unit operation data, a pressure data line graph of a target period of time, which is a period of time before and after the failure, may be generated so as to be checked when needed.
Optionally, after determining whether the pressure switch of the air conditioner fails according to the unit operation data, the failed unit and the associated unit are linked according to the need, for example, the failed unit is turned off, and the power of the normal unit is increased, so as to increase the cold air output, thereby ensuring the normal temperature control requirement.
Through the steps, the unit operation data of the air conditioner are obtained; and determining whether the pressure switch of the air conditioner breaks down according to the unit operation data, so that whether the pressure switch of the air conditioner unit breaks down can be judged according to the analyzed unit operation data through a preset judgment condition of a system, the fault of the pressure switch does not need to be monitored manually, and the technical problem of low fault detection efficiency of the pressure switch can be solved.
Example 2
Aiming at the problems that the faults of the pressure switch of the air conditioning unit can be found only by observing by experienced after-sales personnel and the faults cannot be found in time even if the after-sales personnel exist, the technical scheme of the application judges whether the faults exist or not by analyzing the unit operation data, and immediately alarms when the faults are judged. As an alternative embodiment, the following details the technical solution of the present application in connection with specific steps, see fig. 2:
in step S1, in a Unit configuration DTU (totally referred to as DATA TRANSFER Unit, which is a module specifically used for converting serial data into IP data or converting IP data into serial data to be transmitted through a wireless communication network), the DTU module sends Unit data to a server.
And S2, analyzing the unit data received by the server by the cloud platform, screening the analyzed data, judging whether the pressure switch fails or not, and when the state of the main alternating current contactor of the compressor, whether the high-pressure sensor fails or not and the high-pressure value are needed, synchronously judging whether the failure occurs by the system, and storing the unit data into a database.
And step S3, the system judges whether the pressure switch has faults according to the data analyzed by the cloud platform, firstly judges whether the main alternating-current contactor of the compressor is started, if yes, the step S4 is executed, and if not, the step S5 is executed.
And S4, when the main alternating-current contactor of the compressor is started, whether the high-pressure sensor has a fault or not, and the fault can be judged according to the characteristic that the high-pressure is smaller than the high-pressure protection value minus the high-pressure protection detection deviation 1min before the fault occurs.
And S5, when the main alternating-current contactor of the compressor is closed, the high-pressure sensor has no fault, and the fault of the pressure switch can be judged due to the characteristic that the high-pressure is smaller than the high-pressure protection value 1min before the fault occurs.
And S6, the system sends an alarm to a user or after-sales personnel in a preset alarm mode after judging the fault, such as a short message reminding, marking on a cloud platform client side and the like, and simultaneously stores the fault information into a database.
The system can generate a pressure data line graph of one hour before and after the fault occurs according to the unit operation data, so that after-sales personnel can conveniently analyze the fault, and meanwhile, the data line graph can be seen and called in the system for the fault which has occurred but is recovered.
The system can be linked with the unit according to the need, for example, the unit is closed or the refrigerating temperature is regulated up when the pressure switch fails, so that the normal operation of the unit is ensured when the pressure switch fails.
In the technical scheme of the application, after-sales personnel without experience can monitor the pressure switch fault; the pressure switch fault alarm device can alarm in time, can solve the problem of loss caused by untimely discovery when the pressure switch of the air conditioning unit breaks down, and can effectively avoid the loss caused by a series of subsequent problems caused by the pressure switch fault.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.
From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.
Example 3
According to another aspect of the embodiment of the present application, there is also provided a fault detection device for a pressure switch for implementing the fault detection method for a pressure switch. FIG. 3 is a schematic diagram of an alternative pressure switch fault detection device according to an embodiment of the present application, as shown in FIG. 3, which may include:
an acquisition unit 31 for acquiring unit operation data of the air conditioner; and a detection unit 33, configured to determine whether the pressure switch of the air conditioner fails according to the unit operation data.
Acquiring unit operation data of the air conditioner through the modules; and determining whether the pressure switch of the air conditioner breaks down according to the unit operation data, so that whether the pressure switch of the air conditioner unit breaks down can be judged according to the analyzed unit operation data through a preset judgment condition of a system, the fault of the pressure switch does not need to be monitored manually, and the technical problem of low fault detection efficiency of the pressure switch can be solved.
Optionally, the detection unit is further configured to: analyzing the open-close state and the high-pressure value of a main alternating-current contactor of the compressor of the air conditioner from the unit operation data; and determining whether a pressure switch of the air conditioner fails according to the opening and closing state of the main alternating current contactor and the high-pressure value.
Optionally, the unit operation data carries an operation state of the high pressure sensor, wherein the detection unit is further configured to: under the condition that the main alternating current contactor is in a closed state and the high-pressure sensor operates normally, if the high-pressure value is smaller than a high-pressure protection value, determining that the pressure switch fails; and if the high-pressure value is not smaller than the high-pressure protection value, determining that the pressure switch does not fail.
Optionally, the detection unit is further configured to: if the high-voltage pressure value is smaller than the following value when the main ac contactor is in the open state: determining that the pressure switch fails if the high-voltage protection value-high-voltage protection detection deviation is high; if the high pressure value is not less than: and if the high-voltage protection value-the high-voltage protection detection deviation is detected, determining that the pressure switch does not fail.
Optionally, the apparatus may further include: and the alarm unit is used for sending alarm information and storing the fault information of the pressure switch to a database after determining whether the pressure switch of the air conditioner has a fault according to the unit operation data, wherein the alarm information is used for alarming the fault of the pressure switch.
Optionally, the apparatus may further include: and the data processing unit is used for generating a pressure data line graph of a target period after determining whether the pressure switch of the air conditioner fails according to the unit operation data, wherein the target period is a period of time before and after the failure.
Optionally, the apparatus may further include: and the combined control unit is used for linking the faulty unit with the associated unit according to the requirement after determining whether the pressure switch of the air conditioner fails according to the unit operation data so as to ensure the normal temperature control requirement.
According to another aspect of the embodiment of the present application, there is also provided an air conditioning apparatus including the fault detection device of the pressure switch described above.
It should be noted that the above modules are the same as examples and application scenarios implemented by the corresponding steps, but are not limited to what is disclosed in the above embodiments. It should be noted that, the above modules may be implemented in a corresponding hardware environment as part of the apparatus, and may be implemented in software, or may be implemented in hardware, where the hardware environment includes a network environment.
Example 4
According to another aspect of the embodiment of the present application, there is also provided a fault detection system of a pressure switch, including: the air conditioner is provided with a DTU module and is used for sending unit operation data by utilizing the DTU module; the server is used for receiving the unit operation data of the air conditioner; and the cloud platform is used for determining whether the pressure switch of the air conditioner fails according to the unit operation data.
Example 5
The present embodiment provides an electronic device, including: processor 201, memory 203, and transmission means 205, as shown in fig. 4, the terminal may further comprise input output devices 207; wherein:
The memory 203 may be used to store software programs and modules, such as program instructions/modules corresponding to the methods and apparatuses in the embodiments of the present application, and the processor 201 executes the software programs and modules stored in the memory 203 to perform various functional applications and data processing, i.e., implement the methods described above. Memory 203 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 203 may further comprise memory remotely located relative to the processor 201, which may be connected to the terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 205 is used for receiving or transmitting data via a network, and may also be used for data transmission between the processor and the memory. Specific examples of the network described above may include wired networks and wireless networks. In one example, the transmission device 205 includes a network adapter (Network Interface Controller, NIC) that may be connected to other network devices and routers via a network cable to communicate with the internet or a local area network. In one example, the transmission device 205 is a Radio Frequency (RF) module, which is used to communicate with the internet wirelessly.
Wherein in particular the memory 203 is used for storing application programs.
The processor 201 may call the application program stored in the memory 203 through the transmission means 205 to perform the following steps: acquiring unit operation data of an air conditioner; and determining whether the pressure switch of the air conditioner fails according to the unit operation data.
Example 6
The embodiment of the application provides software for executing the technical scheme described in the embodiment and the preferred implementation mode.
Embodiments of the present application provide a non-volatile computer storage medium storing computer-executable instructions that are capable of performing the method of editing content in a document in any of the method embodiments described above.
The above-described software is stored in the above-described storage medium including, but not limited to: optical discs, floppy discs, hard discs, erasable memory, etc.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method. Technical details not described in detail in this embodiment may be found in the methods provided in the embodiments of the present application.
The electronic device of the embodiments of the present application exists in a variety of forms including, but not limited to:
(1) Mobile communication devices, which are characterized by mobile communication functionality and are aimed at providing voice, data communication. Such terminals include smart phones (e.g., iPhone), multimedia phones, functional phones, and low-end phones, among others.
(2) Ultra mobile personal computer equipment, which belongs to the category of personal computers, has the functions of calculation and processing and generally has the characteristic of mobile internet surfing. Such terminals include PDA, MID and UMPC devices, etc., such as iPad.
(3) Portable entertainment devices such devices can display and play multimedia content. Such devices include audio, video players (e.g., iPod), palm game consoles, electronic books, and smart toys and portable car navigation devices.
(4) The server is similar to a general computer architecture in that the server is required to provide highly reliable services, and therefore, the server has high requirements in terms of processing capacity, stability, reliability, security, expandability, manageability and the like.
(5) Other electronic devices with data interaction function, such as televisions, vehicle-mounted large screens and the like.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. A method of fault detection for a pressure switch, the method comprising:
Acquiring unit operation data of an air conditioner; the unit operation data carries the operation state of the high-pressure sensor;
Determining whether a pressure switch of the air conditioner fails according to the unit operation data; the method comprises the following steps: analyzing the open-close state and the high-pressure value of a main alternating-current contactor of the compressor of the air conditioner from the unit operation data; determining whether a pressure switch of the air conditioner fails according to the opening and closing state of the main alternating current contactor and the high-pressure value;
Wherein determining whether a pressure switch of the air conditioner has a malfunction according to an open-close state of the main ac contactor and the high-pressure value, comprises:
Under the condition that the main alternating current contactor is in a closed state and the high-pressure sensor operates normally, if the high-pressure value is smaller than a high-pressure protection value, determining that the pressure switch fails; if the high-pressure value is not smaller than the high-pressure protection value, determining that the pressure switch does not have a fault;
if the high-voltage pressure value is smaller than the following value when the main ac contactor is in the open state: determining that the pressure switch fails if the high-voltage protection value-high-voltage protection detection deviation is high; if the high pressure value is not less than: and if the high-voltage protection value-the high-voltage protection detection deviation is detected, determining that the pressure switch does not fail.
2. The method of claim 1, wherein after determining whether the pressure switch of the air conditioner is malfunctioning based on the unit operation data, the method further comprises:
And sending alarm information and storing the fault information of the pressure switch into a database, wherein the alarm information is used for alarming the fault of the pressure switch.
3. The method of claim 2, wherein after determining whether the pressure switch of the air conditioner is malfunctioning based on the unit operation data, the method further comprises:
and generating a pressure data line graph of a target period, wherein the target period is a period of time before and after the occurrence of the fault.
4. The method of claim 2, wherein after determining whether the pressure switch of the air conditioner is malfunctioning based on the unit operation data, the method further comprises:
and (3) linking the fault unit with the associated unit according to the requirement so as to ensure the normal temperature control requirement.
5. A fault detection device for a pressure switch for implementing the fault detection method for a pressure switch according to any one of claims 1 to 4, characterized in that the device comprises:
the acquisition unit is used for acquiring unit operation data of the air conditioner;
And the detection unit is used for determining whether the pressure switch of the air conditioner fails according to the unit operation data.
6. An air conditioning apparatus comprising the failure detection device of the pressure switch of claim 5.
7. A fault detection system for a pressure switch for implementing the fault detection method for a pressure switch according to any one of claims 1 to 4, characterized in that the system comprises:
The air conditioner is provided with a DTU module and is used for sending unit operation data by utilizing the DTU module;
the server is used for receiving the unit operation data of the air conditioner;
and the cloud platform is used for determining whether the pressure switch of the air conditioner fails according to the unit operation data.
8. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any one of claims 1 to 4.
9. An electronic device, comprising:
One or more processors;
storage means for storing one or more programs which when executed by the one or more processors cause the one or more processors to implement the method of any of claims 1 to 4.
CN202211242900.8A 2022-10-11 2022-10-11 Fault detection method, device and system of pressure switch and air conditioning equipment Active CN115654651B (en)

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