CN109323365A - The method and apparatus and air-conditioning and storage medium of diagnosis air-conditioning obstruction failure - Google Patents

The method and apparatus and air-conditioning and storage medium of diagnosis air-conditioning obstruction failure Download PDF

Info

Publication number
CN109323365A
CN109323365A CN201811163192.2A CN201811163192A CN109323365A CN 109323365 A CN109323365 A CN 109323365A CN 201811163192 A CN201811163192 A CN 201811163192A CN 109323365 A CN109323365 A CN 109323365A
Authority
CN
China
Prior art keywords
temperature
air
heat exchanger
conditioning
standard value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811163192.2A
Other languages
Chinese (zh)
Other versions
CN109323365B (en
Inventor
王侃
徐振坤
罗羽钊
吴楠
杜顺开
李金波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201811163192.2A priority Critical patent/CN109323365B/en
Publication of CN109323365A publication Critical patent/CN109323365A/en
Application granted granted Critical
Publication of CN109323365B publication Critical patent/CN109323365B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/50—Load

Abstract

The invention discloses the method and apparatus of diagnosis air-conditioning obstruction failure and air-conditionings and storage medium, wherein the method comprise the steps that the running frequency of the indoor environment temperature at acquisition current time, outdoor environment temperature and compressor of air conditioner；Obtain the ability outputting standard value and power standard value of air-conditioning in present mode of operation and environment temperature, outdoor environment temperature and running frequency indoors prestored；Obtain the practical capacity output valve of air-conditioning and the actual motion performance number of compressor；If practical capacity output valve is less than ability outputting standard value and actual motion power is less than power standard value, diagnoses air-conditioning and obstruction failure occurs.The method and apparatus and air-conditioning of diagnosis air-conditioning obstruction failure of the invention, can provide the confidence level and accuracy of diagnosis air-conditioning obstruction failure.

Description

The method and apparatus and air-conditioning and storage medium of diagnosis air-conditioning obstruction failure
Technical field
The invention belongs to the technical field of electrical appliances manufacturing more particularly to a kind of methods of diagnosis air-conditioning obstruction failure, and examine The device and air-conditioning and storage medium of disconnected air-conditioning obstruction failure.
Background technique
Currently, air-conditioning occurs the diagnostic method of obstruction failure, judge generally by temperature or pressure detecting. For example, temperature range is preset, if detection temperature is more than set temperature maximum value or is lower than setting temperature minimum value, i.e., It alarms.
The diagnostic method above-mentioned for air-conditioning occurring obstruction failure, detection process is simple, can not judge load Air-conditioning failure problems only carry out breakdown judge by temperature or pressure, not accurate enough.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of method of diagnosis air-conditioning obstruction failure, this method can be with Improve the confidence level and accuracy of air-conditioning obstruction fault diagnosis.
Second object of the present invention is to propose a kind of air-conditioning.
Third object of the present invention is to propose a kind of storage medium.
Fourth object of the present invention is to propose a kind of device of diagnosis air-conditioning obstruction failure.
5th purpose of the invention is to propose a kind of air-conditioning.
In order to achieve the above object, the method for the diagnosis air-conditioning obstruction failure of first aspect present invention embodiment, comprising: adopt Collect the indoor environment temperature at current time, the running frequency of outdoor environment temperature and compressor of air conditioner；Obtain prestore current The operational mode and ability of the air-conditioning is defeated in the indoor environment temperature, the outdoor environment temperature and the running frequency Standard value and power standard value out；Obtain the practical capacity output valve of the air-conditioning and the actual motion performance number of compressor；Such as Practical capacity output valve described in fruit is less than the ability outputting standard value and the actual motion performance number is less than the power Standard value then diagnoses the air-conditioning and obstruction failure occurs.
The method of diagnosis air-conditioning obstruction failure according to an embodiment of the present invention, passes through the ability output valve and pressure according to air-conditioning The operation performance number of contracting machine judges blockage diagnosis with the relationship of corresponding SS value, compared to the office based on temperature or pressure Portion's diagnostic method, confidence level is higher, more accurately.
In some embodiments, the method also includes: obtain prestore in present mode of operation and in the indoor ring The standard temperature of compressor when border temperature, the outdoor environment temperature and the running frequency, wherein the scale of thermometer Quasi- value includes delivery temperature standard value and the first temperature difference threshold, suction temperature standard value and the second temperature difference threshold, compressor housing Standard temperature and third temperature difference threshold；Acquire actual exhaust air temperature, practical suction temperature and the practical shell of the compressor Temperature；If meeting any one in the following conditions, judge that the compressor reaches overheated condition: the actual exhaust air temperature Degree and the difference of the delivery temperature standard value are greater than first temperature difference threshold, the practical suction temperature and the return air temperature The difference for spending standard value is greater than second temperature difference threshold, the difference of the practical case temperature and the case temperature standard value Greater than the third temperature difference threshold.It is thus possible to further confirm that whether block, correct judgment is improved.
In some embodiments, in cooling mode, the method also includes: obtain prestore in refrigeration mode and in institute The standard temperature of the heat exchanger of air-conditioning when indoor environment temperature, the outdoor environment temperature and the running frequency is stated, Wherein, the standard temperature of the heat exchanger include outdoor heat exchanger middle portion temperature standard value and the first middle portion temperature difference threshold value, Inlet temperature standard value and first entrance temperature difference threshold, the inlet temperature standard value and second of indoor heat exchanger of outdoor heat exchanger Entrance temperature difference threshold；Acquire the practical middle portion temperature of the outdoor heat exchanger, the actual entry temperature of the outdoor heat exchanger and The actual entry temperature of the indoor heat exchanger；If meeting the following conditions, judge that the throttling set of the air-conditioning hinders Fill in failure: the difference of the middle portion temperature standard value of the practical middle portion temperature and outdoor heat exchanger of the outdoor heat exchanger is greater than The first middle portion temperature difference threshold value, also, the entrance of the actual entry temperature of the outdoor heat exchanger and the outdoor heat exchanger The difference of standard temperature be greater than the first entrance temperature difference threshold, also, the actual entry temperature of the indoor heat exchanger with The difference of the inlet temperature standard value of the indoor heat exchanger is greater than the second entrance temperature difference threshold.It is thus possible to further Diagnosing the position blocked is throttling set, is diagnosed more accurate.
In some embodiments, in a heating mode, the method also includes: obtain prestore in heating mode and in institute The standard temperature of the heat exchanger of air-conditioning when indoor environment temperature, the outdoor environment temperature and the running frequency is stated, Wherein, the standard temperature of the heat exchanger include indoor heat exchanger middle portion temperature standard value and the second middle portion temperature difference threshold value, The inlet temperature standard value of indoor heat exchanger and the inlet temperature standard value and the 4th of third entrance temperature difference threshold, outdoor heat exchanger Entrance temperature difference threshold；Acquire the practical middle portion temperature of the indoor heat exchanger, the actual entry temperature of the indoor heat exchanger and The actual entry temperature of the outdoor heat exchanger；If meeting the following conditions, judge that the throttling set of the air-conditioning hinders Fill in failure: the difference of the middle portion temperature standard value of the practical middle portion temperature and indoor heat exchanger of the indoor heat exchanger is greater than The second middle portion temperature difference threshold value, also, the entrance of the actual entry temperature of the indoor heat exchanger and the indoor heat exchanger The difference of standard temperature be greater than the third entrance temperature difference threshold, also, the actual entry temperature of the outdoor heat exchanger with The difference of the inlet temperature standard value of the outdoor heat exchanger is greater than the 4th entrance temperature difference threshold.It is thus possible to further Diagnosing the position blocked is throttling set, is diagnosed more accurate.
In order to achieve the above object, the air-conditioning of second aspect of the present invention embodiment, including memory, processor and be stored in On memory and the computer program that can run on a processor, when the processor executes the computer program, institute is realized The method for the diagnosis air-conditioning obstruction failure stated.
The diagnosis of first aspect embodiment may be implemented by processor and memory for air-conditioning according to an embodiment of the present invention Air-conditioning blocks the method for failure, and obstruction fault diagnosis is more accurate, and confidence level improves.
In order to achieve the above object, the non-transitorycomputer readable storage medium of third aspect present invention embodiment, It is stored thereon with computer program, the diagnosis air-conditioning obstruction failure is realized when the computer program is executed by processor Method.
First aspect reality can be achieved by storing in non-transitorycomputer readable storage medium according to an embodiment of the present invention The computer program of the method for example is applied, thus, support is provided for the realization of this method.
In order to achieve the above object, the device of the diagnosis air-conditioning obstruction failure of fourth aspect present invention embodiment, the dress Setting includes: the first temperature sensor, for acquiring indoor environment temperature；Second temperature sensor, for acquiring outdoor environment temperature Degree；Sensor, the running frequency of the compressor for acquiring air-conditioning；Controller, for obtain prestore in present mode of operation And in the indoor environment temperature, the outdoor environment temperature and the running frequency air-conditioning ability outputting standard value With power standard value, the practical capacity output valve of the air-conditioning and the actual motion performance number of compressor are obtained, and in the reality When border ability output valve is less than the ability outputting standard value and the actual motion performance number and is less than the power standard value, It diagnoses the air-conditioning and obstruction failure occurs.
The device of diagnosis air-conditioning obstruction failure according to an embodiment of the present invention, is exported by controller according to the ability of air-conditioning Value and the operation performance number of compressor judge blockage diagnosis with the relationship of corresponding SS value, compared to based on temperature or pressure The local diagnosis method of power, confidence level is higher, more accurately.
In some embodiments, described device further include: third temperature sensor, for acquiring the reality of the compressor Delivery temperature；4th temperature sensor, for acquiring the practical suction temperature of the compressor；5th temperature sensor, is used for Acquire the practical case temperature of the compressor；The controller is also used to, obtain prestore in present mode of operation and in institute State the standard temperature of compressor when indoor environment temperature, the outdoor environment temperature and the running frequency, wherein institute The standard temperature for stating compressor includes delivery temperature standard value and the first temperature difference threshold, suction temperature standard value and second temperature difference Threshold value, case temperature standard value and third temperature difference threshold, and when meeting any one in the following conditions, judge the compression Machine reaches overheated condition: the difference of the actual exhaust air temperature and the delivery temperature standard value is greater than first temperature difference threshold The difference of value, the practical suction temperature and the suction temperature standard value is greater than second temperature difference threshold, the practical shell The difference of temperature and the case temperature standard value is greater than the third temperature difference threshold.It is thus possible to further confirm that whether Block, improves correct judgment.
In some embodiments, described device further include: the 6th temperature sensor, the outdoor for acquiring the air-conditioning are changed The practical middle portion temperature of hot device；7th temperature sensor, for acquiring the actual entry temperature of the outdoor heat exchanger；8th temperature Spend sensor, the actual entry temperature of the indoor heat exchanger for acquiring the air-conditioning；In cooling mode, the controller is also For, obtain prestore in the refrigeration mode and in the indoor environment temperature, the outdoor environment temperature and the operation The standard temperature of the heat exchanger of air-conditioning when frequency, wherein the standard temperature of the heat exchanger includes that the outdoor is changed The middle portion temperature standard value of hot device and the first middle portion temperature difference threshold value, the inlet temperature standard value of the outdoor heat exchanger and first enter The inlet temperature standard value and second entrance temperature difference threshold of mouth temperature difference threshold, the indoor heat exchanger, and meeting the following conditions When, judge that obstruction failure: the practical middle portion temperature of the outdoor heat exchanger and the outdoor occurs for the throttling set of the air-conditioning The difference of the middle portion temperature standard value of heat exchanger is greater than the first middle portion temperature difference threshold value, also, the reality of the outdoor heat exchanger The difference of border inlet temperature and the inlet temperature standard value of the outdoor heat exchanger is greater than the first entrance temperature difference threshold, and And the difference of the actual entry temperature of the indoor heat exchanger and the inlet temperature standard value of the indoor heat exchanger is greater than described Second entrance temperature difference threshold.It is thus possible to which the position that further diagnosis is blocked is throttling set, diagnose more accurate.
In some embodiments, described device further include: the 7th temperature sensor, the outdoor for acquiring the air-conditioning are changed The actual entry temperature of hot device；8th temperature sensor, the actual entry temperature of the indoor heat exchanger for acquiring the air-conditioning； 9th temperature sensor, for acquiring the practical middle portion temperature of the indoor heat exchanger；In a heating mode, the controller is also For, obtain prestore in the heating mode and in the indoor environment temperature, the outdoor environment temperature and the operation The standard temperature of the heat exchanger of air-conditioning when frequency, wherein the standard temperature of the heat exchanger includes that the interior is changed The middle portion temperature standard value of hot device and the second middle portion temperature difference threshold value, the inlet temperature standard value of the indoor heat exchanger and third enter The inlet temperature standard value and the 4th entrance temperature difference threshold of mouth temperature difference threshold, the outdoor heat exchanger, and meeting the following conditions When, judge that obstruction failure: the practical middle portion temperature of the indoor heat exchanger and the interior occurs for the throttling set of the air-conditioning The difference of the middle portion temperature standard value of heat exchanger is greater than the second middle portion temperature difference threshold value, also, the reality of the indoor heat exchanger The difference of border inlet temperature and the inlet temperature standard value of the indoor heat exchanger is greater than the third entrance temperature difference threshold, and And the difference of the actual entry temperature of the outdoor heat exchanger and the inlet temperature standard value of the outdoor heat exchanger is greater than described 4th entrance temperature difference threshold.It is thus possible to which the position that further diagnosis is blocked is throttling set, diagnose more accurate.
In some embodiments, described device further includes communication unit, and the communication unit is used to obtain the sky from cloud platform The refrigerating capacity standard value and power standard value of tune, the standard temperature of the compressor and the standard temperature of the heat exchanger.
In some embodiments, described device further includes alarm, and the alarm is used to diagnose the air-conditioning generation Warning note is carried out when blocking failure, user can be reminded in time.
In order to achieve the above object, the air-conditioning of fifth aspect present invention embodiment, including compressor, four-way valve, throttling dress It sets, indoor heat exchanger and outdoor heat exchanger, and, the device of the diagnosis air-conditioning obstruction failure.
Air-conditioning according to an embodiment of the present invention blocks failure by using the diagnosis air-conditioning of above-mentioned fourth aspect embodiment Device can more accurately diagnose air-conditioning and obstruction failure occurs.
Detailed description of the invention
Fig. 1 is the flow chart of the method for diagnosis air-conditioning obstruction failure according to an embodiment of the invention；
Fig. 2 is the diagnosis flow chart that throttling set blocks in cooling mode according to an embodiment of the invention；
Fig. 3 is the diagnosis flow chart that throttling set blocks in a heating mode according to an embodiment of the invention；
Fig. 4 is the block diagram of the device of diagnosis air-conditioning obstruction failure according to an embodiment of the invention；
Fig. 5 is the block diagram of the device of diagnosis air-conditioning obstruction failure according to an embodiment of the invention；
Fig. 6 is that the device of diagnosis air-conditioning obstruction failure according to an embodiment of the invention and cloud platform carry out passage Schematic diagram；
Fig. 7 is the block diagram of air-conditioning according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The method of the diagnosis air-conditioning obstruction failure of embodiment according to a first aspect of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the flow chart of the method for diagnosis air-conditioning obstruction failure according to an embodiment of the invention, such as Fig. 1 institute Show, the method for the embodiment of the present invention includes:
S1 acquires the indoor environment temperature at current time, the running frequency of outdoor environment temperature and compressor of air conditioner.
Specifically, for example, temperature sensor can be respectively set in the indoor unit and outdoor unit of air-conditioning, with collection room respectively Interior environment temperature and outdoor environment temperature, and, design frequency sensor is to detect the running frequency of compressor.
S2, obtain prestore in present mode of operation and in the indoor environment temperature, outdoor environment temperature and running frequency When air-conditioning ability outputting standard value and power standard value.
In an embodiment of the present invention, under air-conditioning normal operation, big data statistics is in advance first passed through, air-conditioning is existed Normal temperature when various operational modes and corresponding various indoor environment temperatures, outdoor environment temperature and compressor operating frequency Air conditioner operation parameters when operation are counted, and are handled statistical value to obtain the SS value in various situations, The reference of the SS value as air-conditioning under normal operating conditions.Wherein, SS value may include the ability of air-conditioning Outputting standard value and power standard value further include other relevant parameter values certainly.
Wherein, SS value can save beyond the clouds, when needed, obtain corresponding data by communicating；Alternatively, Local can be stored in.
S3 obtains the practical capacity output valve of air-conditioning and the actual motion performance number of compressor.
S4, if practical capacity output valve is less than ability outputting standard value and actual motion performance number is less than power standard Value then diagnoses air-conditioning and obstruction failure occurs.
Specifically, when air-conditioning operates normally, practical capacity output valve should be in the permission model of ability outputting standard value In enclosing, it is less than ability outputting standard value in practical capacity output valve, and the actual motion performance number of compressor is less than power standard Value, that is, the ability output generated is lower than the ability output valve that should be generated, it is believed that obstruction failure has occurred, for example, transporting in air-conditioning It may be mixed into water or other impurities or throttling set itself moving component failure when row, in system, cause in a period of time Afterwards, pipeline especially throttling set may block, so that refrigerant can not be recycled normally in the circulatory system, Reduce ability output and the power of air-conditioning.And in the related technology, obstruction failure is diagnosed by temperature or pressure, is only often It is diagnosed based on the situation of part, underconfidence is also not accurate enough, and the diagnostic method of the application, the refrigeration based on air-conditioning Ability and power are judged that confidence level is higher, more accurately.
For example, in cooling mode, it should not specifically report an error in air-conditioning, not occur causing certainly due to failure It is carried out under the premise of frequency limit or certainly shutdown.Specifically, indoor environment temperature T1, outdoor environment temperature T4 and compressor are transferred Running frequency f search the SS value of the operating parameter of this air-conditioning prestored, it may for example comprise air-conditioning and on this basis Ability outputting standard value and power standard value and compressor each position temperature, the standard temperature of heat exchanger with And the various threshold values of setting.In turn, the actual motion power of ability output valve Q and compressor when transferring the real time execution of air-conditioning Value W, while the ability outputting standard value q1 under the correspondence refrigeration mode and parameter current prestored and power standard value w1 is transferred, sentence It is disconnected whether to meet Q < q1 and W < w1, if it is satisfied, then judging that air-conditioning occurs to be easier to send out at pipe blocking, especially throttling set Raw blocking.Wherein, it in two above decision condition, is re-started above after being spaced some time if one invalid Step is to be diagnosed, or carries out other fault diagnosises.
Illustrate by taking heating mode as an example, in a heating mode, transfers interior environment temperature and be for example set as T1, outdoor environment temperature Such as it is set as the running frequency f of T4 and compressor, and on this basis, search the statistics of the operating parameter of this air-conditioning prestored Standard value, and the operation power W of the ability i.e. refrigerating capacity Q and compressor when transferring air-conditioning real time execution, while transferring and prestoring Correspondence heating mode and parameter current under ability outputting standard value q2 and power standard value w2 processed, judge whether to meet Q < q2 And W < w2, if it is satisfied, then judging that obstruction failure occurs for air-conditioning.Wherein, in two above decision condition, if one not at It is vertical then diagnosis above is re-started after being spaced some time, or carry out other fault diagnosises.
The method of diagnosis air-conditioning obstruction failure according to an embodiment of the present invention, passes through the ability output valve and pressure according to air-conditioning The operation performance number of contracting machine judges blockage diagnosis with the relationship of corresponding SS value, compared to the office based on temperature or pressure Portion's diagnostic method, confidence level is higher, more accurately.
As above, air-conditioning can be diagnosed by the operation power of the refrigerating capacity of air-conditioning and compressor and pipe blocking failure occurs, In order to further judge specific failure, in an embodiment of the present invention, it is contemplated that, due to being hindered at pipeline or throttling set Failure is filled in, the heat that compressor operation can be made to generate can not be taken out of compressor body by refrigerant, thus, each portion's temperature of compressor It will exceed threshold value, so, can further determine whether it is that pipeline or throttling set block according to the temperature of compressor Failure.
The method of the embodiment of the present invention further include: obtain prestore in present mode of operation and environment temperature, room indoors The standard temperature of compressor when external environment temperature and running frequency, wherein standard temperature include delivery temperature standard value and First temperature difference threshold, suction temperature standard value and the second temperature difference threshold, compressor housing standard temperature and third temperature difference threshold； Acquire actual exhaust air temperature, practical suction temperature and the practical case temperature of compressor；If met any in the following conditions One, then judge that compressor reaches overheated condition: the difference of actual exhaust air temperature and delivery temperature standard value is greater than described first The difference of temperature difference threshold, practical suction temperature and suction temperature standard value is greater than the second temperature difference threshold, practical case temperature and shell The difference of temperature standard value is greater than third temperature difference threshold.
For in a chiller mode, if the condition of obstruction failure occurs according to the output of the ability of air-conditioning and power diagnosis air-conditioning It sets up, then further, transfers the actual exhaust air temperature Tp, practical suction temperature Tsuc and practical shell of the real-time compressor of air-conditioning Temperature Tshe, while transferring the delivery temperature standard value Tp_ that the compressor under parameter current is corresponded under the refrigeration mode prestored Sto, suction temperature standard value Tsuc_sto and case temperature standard value Tshe_sto, and judge whether to meet: Tp-Tp_sto > C1, Tsuc-Tsuc_sto > C2, Tshe_-Tshe_sto > C3, wherein C1 is the first temperature difference threshold under refrigeration mode, and C2 is The second temperature difference threshold under refrigeration mode, C3 are the third temperature difference threshold under refrigeration mode.Wherein, condition above is if there is one A establishment then further determines that obstruction failure occurs for the pipeline of air-conditioning or throttling set, if all invalid, when being spaced several Between re-start diagnosis above, or carry out other fault diagnosises.
Again by taking heating mode as an example, if diagnosing air-conditioning according to the operation power of the output of the ability of air-conditioning and compressor The condition for blocking failure is set up, then further, transfers actual exhaust air temperature Tp, the practical return air temperature of the real-time compressor of air-conditioning Tsuc and practical case temperature Tshe is spent, while transferring the identical indoor and outdoor surroundings temperature conditions in a heating mode prestored When lower air-conditioning stable operation, delivery temperature standard value Tp_sto, suction temperature standard value Tsuc_sto and the shell of compressor Standard temperature Tshe_sto, and judge whether to meet: Tp-Tp_sto > C7, Tsuc Tsuc_sto > C8, Tshe_sto- Tshe_sto > C9, wherein C7 is the first temperature difference threshold under heating mode, and C8 is the second temperature difference threshold under heating mode, C9 For the third temperature difference threshold under heating mode.If there is a conditions for diagnostics to set up, pipeline or the throttling of air-conditioning are further determined that Obstruction failure occurs for device；This diagnosis is re-started after being spaced some time if all invalid, or carries out examining for other failures It is disconnected.
Further, according to the ability of air-conditioning output and compressor operation power judgement occur obstruction failure and according to The temperature of compressor determines overheat of compressor, on this basis, can be to determine further in accordance with the temperature of heat exchanger No is the throttling set obstruction of air-conditioning.In an embodiment of the present invention, in cooling mode, obtain prestore in refrigeration mode and The standard temperature of the heat exchanger of air-conditioning in current indoor environment temperature, outdoor environment temperature and running frequency, wherein change The standard temperature of hot device includes the middle portion temperature standard value and the first middle portion temperature difference threshold value, outdoor heat exchanger of outdoor heat exchanger Inlet temperature standard value and first entrance temperature difference threshold, the inlet temperature standard value of indoor heat exchanger and second entrance temperature difference threshold Value；Acquire practical middle portion temperature, the actual entry temperature of outdoor heat exchanger and actually the entering for indoor heat exchanger of outdoor heat exchanger Mouth temperature；If meeting the following conditions, judge that obstruction failure: the practical middle part of outdoor heat exchanger occurs for the throttling set of air-conditioning The difference of temperature and the middle portion temperature standard value of outdoor heat exchanger is greater than the first middle portion temperature difference threshold value, also, outdoor heat exchanger The difference of actual entry temperature and the inlet temperature standard value of outdoor heat exchanger is greater than first entrance temperature difference threshold, also, indoor The difference of the inlet temperature standard value of the actual entry temperature and indoor heat exchanger of heat exchanger is greater than second entrance temperature difference threshold.
Specifically, in cooling mode, the practical middle portion temperature of outdoor heat exchanger when transferring the operation of air-conditioning real-time stabilization The actual entry temperature Teva_in of Tcon_mid, the actual entry temperature Tcon_in of outdoor heat exchanger, indoor set heat exchanger, together When transfer the middle portion temperature standard value Tcon_mid_sto of the corresponding outdoor heat exchanger prestored, the inlet temperature of outdoor heat exchanger The inlet temperature standard value Teva_in_sto of standard value Tcon_in_sto and indoor set heat exchanger；And judge whether to meet: Tcon_mid-Tcon_mid_sto > C4, Tcon_in-Tcon_in_sto > C5, Teva_in_sto-Teva_in > C6, wherein C4 is the first middle portion temperature difference threshold value, and C5 is first entrance temperature difference threshold, and C6 is second entrance temperature difference threshold.If all setting up, Obstruction failure occurs for the throttling set for diagnosing air-conditioning under refrigeration mode；If have one it is invalid if be spaced some time after again into This diagnosis of row, or carry out the diagnosis of other failures.
Further, according to the ability of air-conditioning output and compressor operation power judgement occur obstruction failure and according to The temperature of compressor determines overheat of compressor, on this basis, the method for the embodiment of the present invention further include: and in a heating mode, Obtain prestore heating mode and in current indoor environment temperature, outdoor environment temperature and running frequency air-conditioning heat exchange The standard temperature of device, wherein the standard temperature of heat exchanger includes in the middle portion temperature standard value and second of indoor heat exchanger The inlet temperature of portion's temperature difference threshold, the inlet temperature standard value of indoor heat exchanger and third entrance temperature difference threshold, outdoor heat exchanger Standard value and the 4th entrance temperature difference threshold；Acquire the practical middle portion temperature of indoor heat exchanger, the actual entry temperature of indoor heat exchanger The actual entry temperature of degree and outdoor heat exchanger；If meeting the following conditions, judge that obstruction event occurs for the throttling set of air-conditioning Barrier: the difference of the middle portion temperature standard value of the practical middle portion temperature and indoor heat exchanger of indoor heat exchanger is greater than the second middle portion temperature difference Threshold value, also, the difference of the inlet temperature standard value of the actual entry temperature and indoor heat exchanger of indoor heat exchanger is greater than third Entrance temperature difference threshold, also, the difference of the inlet temperature standard value of the actual entry temperature and outdoor heat exchanger of outdoor heat exchanger Greater than the 4th entrance temperature difference threshold.
Specifically, in a heating mode, the practical middle portion temperature of indoor heat exchanger when transferring the operation of air-conditioning real-time stabilization The actual entry temperature Tcon_in of Teva_mid, the actual entry temperature Teva_in of indoor heat exchanger and outdoor unit heat exchanger, It is transferred under the heating mode prestored under identical indoor and outdoor surroundings temperature conditions when air-conditioning stable operation simultaneously, indoor heat exchanger Middle portion temperature standard value Teva_mid_sto, the inlet temperature standard value Teva_in_sto of indoor heat exchanger and outdoor unit heat exchange The inlet temperature standard value Tcon_in_sto of device；And judge whether to meet: Teva_mid_-Teva_mid_sto > C7, Teva_ In-Teva_in_sto > C8, Tcon_in_sto-Tcon_in > C9, wherein C7 is the second middle portion temperature difference threshold value, and C8 enters for third Mouth temperature difference threshold, C9 are the 4th entrance temperature difference threshold.If all setting up, the throttling set for diagnosing air-conditioning under heating mode occurs Block failure；If have one it is invalid if be spaced some time after re-start this diagnosis, or carry out the diagnosis of other failures.
Based on explanation above, it is illustrated in figure 2 under diagnosis refrigeration mode according to an embodiment of the invention and throttles The flow chart of obstruction failure occurs for device, specifically includes:
S21 starts and blocks fault diagnosis to throttling set under refrigeration mode.
S22 transfers parameter T1, T4 and f.
S23 obtains corresponding Tp_sto, Tsuc_sto, Tshe_sto, Tcon_mid_sto, the Tcon_in_ prestored sto、Teva_in_sto、C1、C2、C3、C4、C5、C6。
S24, ability output and power detection, judge whether to meet: Q < q1, W < w1, if it is satisfied, then S25 is entered step, Otherwise interval preset time continues this step.
S25 carries out compressor temperature detection, judges whether to meet: Tp-Tp_sto > C1, Tsuc-Tsuc_sto > C2, Tshe_-Tshe_sto > C3, if meet first, if enter step S26, otherwise be spaced preset time continue this step.
S26 carries out heat exchange temperature detection, judges whether to meet: Tcon_mid-Tcon_mid_sto > C4, Tcon_in- Otherwise Tcon_in_sto > C5, Teva_in_sto-Teva_in > C6 are spaced preset time if it is satisfied, then entering step S27 Continue this step.
Obstruction failure occurs for S27, the throttling set for diagnosing air-conditioning.
It is again to be illustrated in figure 3 under diagnosis heating mode according to an embodiment of the invention to throttle with heating mode The flow chart of obstruction failure occurs for device, specifically includes:
S31 starts and blocks fault diagnosis to throttling set under heating mode.
S32 transfers parameter T1, T4 and f.
S33 obtains corresponding Tp_sto, Tsuc_sto, Tshe_sto, Tcon_in_sto, the Teva_mid_ prestored sto、Teva_in_sto、C1、C2、C3、C7、C8、C9。
S34, ability output and power detection, judge whether to meet: Q < q2, W < w2, if it is satisfied, then S35 is entered step, Otherwise interval preset time continues this step.
S35 carries out compressor temperature detection, judges whether to meet: Tp-Tp_sto > C7, Tsuc Tsuc_sto > C8, Tshe_sto-Tshe_sto > C9, if meet first, if enter step S36, otherwise be spaced preset time continue this step.
S36 carries out heat exchange temperature detection, judges whether to meet: Teva_mid_-Teva_mid_sto > C7, Teva_ In-Teva_in_sto > C8, Tcon_in_sto-Tcon_in > C9, if it is satisfied, then entering step S37, otherwise interval is default Time continues this step.
Obstruction failure occurs for S37, the throttling set for diagnosing air-conditioning.
In short, the method for the diagnosis air-conditioning obstruction failure of the embodiment of the present invention, according to the ability output valve of air-conditioning and Performance number and SS value based on big data diagnose obstruction failure, compared to the office based on temperature or pressure Portion's judgement, confidence level provide, more accurately；Further, the temperature of the different location of compressor is detected, according to inspection When testing temperature and the corresponding temperature difference prestored reach temperature difference threshold, then overheat of compressor is judged, further determine that due to occurring Block failure and refrigerant in compressor can not be excluded, leads to its overheat；Also, pass through refrigerating capacity and power detection, pressure The temperature detection of the different location of contracting machine temperature detection and heat exchanging device can determine the throttling set obstruction of air-conditioning, so that Refrigerant can not normal circulation so that refrigerating capacity reduce and system various pieces generate thermal accumlation, compared to several A temperature sensor individually diagnoses, and the application is diagnosed by the collaboration of more temperature detecting points, and more accurately, confidence level is more It is high.
The method of diagnosis air-conditioning obstruction failure based on above example, below to the sky of second aspect of the present invention embodiment Tune is described.
The air-conditioning of second aspect of the present invention embodiment includes memory, processor and storage on a memory and can handle When the processor executes computer program, examining for first aspect embodiment above is may be implemented in the computer program run on device The method of disconnected air-conditioning obstruction failure.
The diagnosis of first aspect embodiment may be implemented by processor and memory for air-conditioning according to an embodiment of the present invention Air-conditioning blocks the method for failure, and obstruction fault diagnosis is more accurate, and confidence level improves.
The storage medium of third aspect present invention embodiment, the non-transitory of third aspect present invention embodiment are described below Computer readable storage medium is stored thereon with computer program, when which is executed by processor, may be implemented The method of the diagnosis air-conditioning obstruction failure of face first aspect embodiment.
First aspect reality can be achieved by storing in non-transitorycomputer readable storage medium according to an embodiment of the present invention The computer program of the method for example is applied, thus, basis is provided for the realization of this method.
The device of the diagnosis air-conditioning obstruction failure of embodiment according to a fourth aspect of the present invention is described with reference to the accompanying drawings.
Fig. 4 is the block diagram of the device of diagnosis air-conditioning obstruction failure according to an embodiment of the invention, as shown in figure 4, The device 100 of the embodiment of the present invention includes the first temperature sensor 10, second temperature sensor 11, frequency sensor 12 and control Device 13.
Wherein, the first temperature sensor 10 is for acquiring indoor environment temperature；Second temperature sensor 11 is used for collection room External environment temperature；Frequency sensor 12 is used to acquire the running frequency of the compressor of air-conditioning；Controller 13 is prestored for obtaining The refrigerating capacity standard value and function of air-conditioning in present mode of operation and environment temperature, outdoor environment temperature and running frequency indoors Rate standard value obtains the practical capacity output valve of air-conditioning and the actual motion performance number of compressor, small in practical capacity output valve In ability outputting standard value and when the actual motion performance number of compressor is less than power standard value, then diagnoses air-conditioning and block Failure so that refrigerating capacity reduces, and makes since obstruction refrigerant can not be recycled normally in cooling cycle system The operation power for obtaining compressor reduces.
In an embodiment of the present invention, under air-conditioning normal operation, big data statistics is in advance first passed through, air-conditioning is existed Normal temperature is transported when various operational modes and corresponding various indoor environment temperatures, outdoor environment temperature and compressor operating frequency Air conditioner operation parameters when row are counted, and are handled statistical value to obtain the SS value in various situations, should Reference of the SS value as air-conditioning under normal operating conditions.Wherein, SS value may include that the ability of air-conditioning is defeated Standard value and power standard value out further include other relevant parameter values certainly.The standard value obtained is counted more by big data It is reliable accurate to add.
The device 100 of diagnosis air-conditioning obstruction failure according to an embodiment of the present invention, by controller 13 according to the energy of air-conditioning Power output valve and the operation performance number of compressor judge blockage diagnosis with the relationship of corresponding SS value, compared to based on temperature The diagnostic method of degree or pressure, confidence level is higher, more accurately.
As above, air-conditioning can be diagnosed by the operation power of the refrigerating capacity of air-conditioning and compressor and obstruction failure occurs, in order to Further judge specific failure, it is contemplated that, since obstruction failure occurring at pipeline or throttling set, can compressor be run The heat of generation can not be taken out of compressor body by refrigerant, thus, each portion's temperature of compressor will exceed threshold value, so, Ke Yigen Further determine whether it is that obstruction failure occurs for pipeline or throttling set according to the temperature of compressor.
In some embodiments of the invention, as shown in figure 5, to be sent out according to the diagnosis air-conditioning of one embodiment of the present of invention The scheme of installation of sensor in the device of raw obstruction failure, the device 100 of the embodiment of the present invention further includes third temperature sensing Device 14, the 4th temperature sensor 15 and the 5th temperature sensor 16.
Wherein, third temperature sensor 14 is used to acquire the actual exhaust air temperature of compressor；4th temperature sensor 15 is used In the practical suction temperature of acquisition compressor；5th temperature sensor 16 is used to acquire the practical case temperature of compressor；Control Device 13 is also used to, obtain prestore in present mode of operation and environment temperature, outdoor environment temperature and running frequency indoors The standard temperature of compressor, wherein the standard temperature of compressor includes delivery temperature standard value and the first temperature difference threshold, returns Gas standard temperature and the second temperature difference threshold, compressor housing standard temperature and third temperature difference threshold, and meeting following item When any one in part, judge that compressor reaches overheated condition: actual exhaust air temperature and the difference of delivery temperature standard value are big In first temperature difference threshold, the difference of practical suction temperature and suction temperature standard value is greater than the second temperature difference threshold, practical shell The difference of temperature and case temperature standard value is greater than third temperature difference threshold.Wherein, in above any one of the conditions for diagnostics When establishment, overheat of compressor is judged, it is believed that cause since obstruction failure occurring at pipeline especially throttling set, i.e. diagnosis may Block at throttling set.
It whether is blocked at throttling set to more accurately diagnose, the diagnosis air-conditioning obstruction of the embodiment of the present invention The device 100 of failure is further diagnosed according to the temperature of the different location of the heat exchanger of air-conditioning.
In an embodiment of the present invention, for refrigeration mode, as shown in figure 5, the device 100 of the embodiment of the present invention further includes 6th temperature sensor 17, the 7th temperature sensor 18 and the 8th temperature sensor 19.
Wherein, the 6th temperature sensor 17 is used to acquire the practical middle portion temperature of the outdoor heat exchanger of air-conditioning；7th temperature Sensor 18 is used to acquire the actual entry temperature of outdoor heat exchanger；The interior that 8th temperature sensor 19 is used to acquire air-conditioning is changed The actual entry temperature of hot device.
In cooling mode, controller 13 is also used to, obtain prestore in refrigeration mode and in current indoor environment temperature The standard temperature of the heat exchanger of air-conditioning when degree, outdoor environment temperature and running frequency, wherein the standard temperature packet of heat exchanger Include middle portion temperature standard value and the first middle portion temperature difference threshold value, the inlet temperature standard value of outdoor heat exchanger and of outdoor heat exchanger One entrance temperature difference threshold, the inlet temperature standard value of indoor heat exchanger and second entrance temperature difference threshold, and meeting the following conditions When, judge that obstruction failure: the practical middle portion temperature of outdoor heat exchanger and the middle part of outdoor heat exchanger occurs for the throttling set of air-conditioning The difference of standard temperature is greater than the first middle portion temperature difference threshold value, also, the actual entry temperature and outdoor heat exchange of outdoor heat exchanger The difference of the inlet temperature standard value of device be greater than first entrance temperature difference threshold, also, the actual entry temperature of indoor heat exchanger with The difference of the inlet temperature standard value of indoor heat exchanger is greater than second entrance temperature difference threshold.
For heating mode, as shown in figure 5, the device 100 of the embodiment of the present invention further includes the 9th temperature sensor 20, In, the 9th temperature sensor 20 is used to acquire the practical middle portion temperature of the indoor heat exchanger of air-conditioning.
In a heating mode, controller 13 is also used to, obtain prestore in heating mode and environment temperature, outdoor indoors The standard temperature of the heat exchanger of air-conditioning when environment temperature and running frequency, the standard temperature of heat exchanger include indoor heat exchanger Middle portion temperature standard value and the second middle portion temperature difference threshold value, the inlet temperature standard value of indoor heat exchanger and third entrance temperature difference threshold Value, the inlet temperature standard value of outdoor heat exchanger and the 4th entrance temperature difference threshold, and when meeting the following conditions, judge air-conditioning Obstruction failure: the difference of the middle portion temperature standard value of the practical middle portion temperature and indoor heat exchanger of indoor heat exchanger occurs for throttling set Value is greater than the second middle portion temperature difference threshold value, also, the inlet temperature mark of the actual entry temperature of indoor heat exchanger and indoor heat exchanger The difference of quasi- value is greater than third entrance temperature difference threshold, also, the actual entry temperature of outdoor heat exchanger and entering for outdoor heat exchanger The difference of mouth standard temperature is greater than the 4th entrance temperature difference threshold.
In short, in an embodiment of the present invention, according to the ability output valve and performance number of air-conditioning and being based on big data SS value, can diagnose air-conditioning whether occur block failure, and judgement occur obstruction failure when, further according to pressure The temperature of the different location of contracting machine judges specifically what failure, such as judges whether it is throttling set obstruction, and diagnosing When throttling set blocks, for further precisely judgement, diagnosed further according to the temperature of heat exchanger, in the difference of heat exchanger When the temperature of position also complies with overheated condition, that is, it is diagnosed as throttling set and blocks, by the way that multiple temperature spots are arranged, and it is more A temperature spot collaboration judgement, improves diagnostic accuracy, improves confidence level.
In an embodiment of the present invention, SS value can save beyond the clouds, when needed, be obtained by data communication Corresponding data is obtained, alternatively, local memory can also be stored in.It is illustrated in figure 6 the diagnosis of one embodiment of the present of invention The schematic diagram that the device of air-conditioning obstruction failure is communicated with cloud platform, as shown in Figure 5 and Figure 6, the device of the embodiment of the present invention 100 further include communication unit 23, and communication unit 23 can carry out data interaction by network and cloud platform, and communication unit 23 is used for flat from cloud Platform 200 obtains the ability outputting standard value of compressor and the temperature of power standard value, the standard temperature of compressor and heat exchanger Standard value.In turn, the various SS values of acquisition can be stored in local memory module 131, passes through controller 13 Modules realize the diagnosis to air-conditioning.For example, receiving ASSOCIATE STATISTICS standard value by receiving module 132, module 133 is obtained Carry out the actual value needed for obtaining by calculation method, such as calculates the refrigerating capacity and power of air-conditioning according to various temperature informations Deng analysis feedback module 134, which can be compared each value, to be analyzed to judge whether to reach conditions for diagnostics, and can will be analyzed As a result cloud platform 200 is fed back to, control module 135 controls modules.Wherein, each data in cloud platform 200 It can also obtain and use for various terminals such as mobile terminal or computer equipment.
In some embodiments of the invention, as shown in figure 5, the device 100 of the embodiment of the present invention further includes alarm 24, Alarm 24 is used to carry out warning note when diagnosing air-conditioning and obstruction failure occurring, such as carries out text prompt by display screen And/or alarmed by audio, user can be informed in time.
In short, the device 100 of the diagnosis air-conditioning obstruction failure of the embodiment of the present invention, according to the refrigerating capacity and function of air-conditioning Rate and SS value based on big data diagnose obstruction failure, sentence compared to the part based on temperature or pressure Disconnected, confidence level provides, more accurately；Further, the temperature of the different location of compressor is detected, according to detection temperature When the corresponding temperature difference spent and prestored reaches temperature difference threshold, then judges overheat of compressor, further determine that due to blocking Failure and refrigerant in compressor can not be excluded, lead to its overheat；Also, pass through refrigerating capacity and power detection, compressor The temperature detection of the different location of temperature detection and heat exchanging device, diagnose air-conditioning throttling set obstruction, prevent refrigerant from Enough normal circulations pass so that refrigerating capacity reduces and the various pieces of system generate thermal accumlation compared to several temperature Sensor individually diagnoses, and the application is diagnosed by the collaboration of more temperature detecting points, and more accurately, confidence level is higher.
The device of diagnosis air-conditioning obstruction failure based on the above embodiment, describes according to the present invention the 5th with reference to the accompanying drawings The air-conditioning of aspect embodiment.
It is illustrated in figure 7 the schematic diagram of the coolant circulating system of air-conditioning according to an embodiment of the invention, the present invention The air-conditioning 1000 of embodiment includes compressor 300, four-way valve 400, throttling set 500, indoor heat exchanger 600 and outdoor heat exchanger 700, and, above fourth aspect embodiment diagnosis air-conditioning obstruction failure device 100 (operative sensor is shown in figure), when It further include so other component, such as indoor fan 51, outdoor fan 31, it is numerous to list herein.
Air-conditioning 1000 according to an embodiment of the present invention blocks event by using the diagnosis air-conditioning of above-mentioned fourth aspect embodiment The device 100 of barrier can more accurately diagnose air-conditioning and obstruction failure occurs.
It should be noted that in the description of this specification, any mistake described otherwise above in flow chart or herein Journey or method description are construed as, and expression includes the steps that one or more for realizing specific logical function or process Executable instruction code module, segment or part, and the range of the preferred embodiment of the present invention includes other Realize, wherein sequence shown or discussed can not be pressed, including according to related function by it is basic simultaneously in the way of or press Opposite sequence, to execute function, this should be understood by the embodiment of the present invention person of ordinary skill in the field.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment It sets.The more specific example (non-exhaustive list) of computer-readable medium include the following: there is the electricity of one or more wirings Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable Medium, because can then be edited, be interpreted or when necessary with it for example by carrying out optical scanner to paper or other media His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (13)

1. a kind of method of diagnosis air-conditioning obstruction failure, which is characterized in that the described method includes:
Acquire the indoor environment temperature at current time, the running frequency of outdoor environment temperature and compressor of air conditioner；
Obtain prestore present mode of operation and the indoor environment temperature, the outdoor environment temperature and the operation frequently The ability outputting standard value and power standard value of the air-conditioning when rate；
Obtain the practical capacity output valve of the air-conditioning and the actual motion performance number of compressor；
If the practical capacity output valve is less than the ability outputting standard value and the actual motion performance number is less than institute Power standard value is stated, then diagnoses the air-conditioning and obstruction failure occurs.
2. the method for diagnosis air-conditioning obstruction failure according to claim 1, which is characterized in that the method also includes:
Obtain prestore present mode of operation and the indoor environment temperature, the outdoor environment temperature and the operation frequently The standard temperature of compressor when rate, wherein the standard temperature includes delivery temperature standard value and the first temperature difference threshold Value, suction temperature standard value and the second temperature difference threshold, compressor housing standard temperature and third temperature difference threshold；
Acquire actual exhaust air temperature, practical suction temperature and the practical case temperature of the compressor；
If meeting any one in the following conditions, judge that the compressor reaches overheated condition: the actual exhaust air temperature Degree and the difference of the delivery temperature standard value are greater than first temperature difference threshold, the practical suction temperature and the return air temperature The difference for spending standard value is greater than second temperature difference threshold, the difference of the practical case temperature and the case temperature standard value Greater than the third temperature difference threshold.
3. the method for diagnosis air-conditioning obstruction obstacle according to claim 2, which is characterized in that in cooling mode, described Method further include:
Obtain prestore in refrigeration mode and in the indoor environment temperature, the outdoor environment temperature and the running frequency The standard temperature of the heat exchanger of the air-conditioning, wherein the standard temperature of the heat exchanger includes the middle part of outdoor heat exchanger Standard temperature and the first middle portion temperature difference threshold value, the inlet temperature standard value of outdoor heat exchanger and first entrance temperature difference threshold, room The inlet temperature standard value and second entrance temperature difference threshold of interior heat exchanger；
The practical middle portion temperature of the outdoor heat exchanger, the actual entry temperature of the outdoor heat exchanger and the interior is acquired to change The actual entry temperature of hot device；
If meeting the following conditions, judge that obstruction failure: the reality of the outdoor heat exchanger occurs for the throttling set of the air-conditioning The difference of the middle portion temperature standard value of border middle portion temperature and the outdoor heat exchanger is greater than the first middle portion temperature difference threshold value, and And the difference of the actual entry temperature of the outdoor heat exchanger and the inlet temperature standard value of the outdoor heat exchanger is greater than described First entrance temperature difference threshold, also, the inlet temperature of the actual entry temperature of the indoor heat exchanger and the indoor heat exchanger The difference of standard value is greater than the second entrance temperature difference threshold.
4. the method for diagnosis air-conditioning obstruction failure according to claim 2, which is characterized in that in a heating mode, described Method further include:
Obtain prestore in heating mode and in the indoor environment temperature, the outdoor environment temperature and the running frequency The standard temperature of the heat exchanger of the air-conditioning, wherein the standard temperature of the heat exchanger includes the middle part of indoor heat exchanger Standard temperature and the second middle portion temperature difference threshold value, the inlet temperature standard value of indoor heat exchanger and third entrance temperature difference threshold, room The inlet temperature standard value and the 4th entrance temperature difference threshold of external heat exchanger；
The practical middle portion temperature of the indoor heat exchanger, the actual entry temperature of the indoor heat exchanger and the outdoor is acquired to change The actual entry temperature of hot device；
If meeting the following conditions, judge that obstruction failure: the reality of the indoor heat exchanger occurs for the throttling set of the air-conditioning The difference of the middle portion temperature standard value of border middle portion temperature and the indoor heat exchanger is greater than the second middle portion temperature difference threshold value, and And the difference of the actual entry temperature of the indoor heat exchanger and the inlet temperature standard value of the indoor heat exchanger is greater than described Third entrance temperature difference threshold, also, the inlet temperature of the actual entry temperature of the outdoor heat exchanger and the outdoor heat exchanger The difference of standard value is greater than the 4th entrance temperature difference threshold.
5. a kind of air-conditioning, which is characterized in that including memory, processor and store on a memory and can run on a processor Computer program, which is characterized in that when the processor executes the computer program, realize as appointed in claim 1-4 The method of diagnosis air-conditioning obstruction failure described in one.
6. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, which is characterized in that the calculating The method of the diagnosis air-conditioning obstruction failure as described in any in claim 1-4 is realized when machine program is executed by processor.
7. a kind of device of diagnosis air-conditioning obstruction failure, which is characterized in that described device includes:
First temperature sensor, for acquiring indoor environment temperature；
Second temperature sensor, for acquiring outdoor environment temperature；
Frequency sensor, the running frequency of the compressor for acquiring air-conditioning；
Controller, for obtain prestore in present mode of operation and in the indoor environment temperature, the outdoor environment temperature With the ability outputting standard value and power standard value of air-conditioning described when the running frequency, the practical capacity for obtaining the air-conditioning is defeated Out be worth and compressor actual motion performance number, and the practical capacity output valve be less than the ability outputting standard value and When the actual motion performance number is less than the power standard value, diagnoses the air-conditioning and obstruction failure occurs.
8. the device of diagnosis air-conditioning obstruction failure according to claim 7, which is characterized in that described device further include:
Third temperature sensor, for acquiring the actual exhaust air temperature of the compressor；
4th temperature sensor, for acquiring the practical suction temperature of the compressor；
5th temperature sensor, for acquiring the practical case temperature of the compressor；
The controller is also used to, obtain prestore in present mode of operation and in the indoor environment temperature, the outdoor ring The standard temperature of compressor when border temperature and the running frequency, wherein the standard temperature of the compressor includes Delivery temperature standard value and the first temperature difference threshold, suction temperature standard value and the second temperature difference threshold, compressor housing temperature standard Value and third temperature difference threshold, and when meeting any one in the following conditions, judge that the compressor reaches overheated condition: institute The difference for stating actual exhaust air temperature and the delivery temperature standard value is greater than first temperature difference threshold, the practical suction temperature It is greater than second temperature difference threshold, the practical case temperature and the case temperature with the difference of the suction temperature standard value The difference of standard value is greater than the third temperature difference threshold.
9. the device of diagnosis air-conditioning obstruction failure according to claim 8, which is characterized in that described device further include:
6th temperature sensor, the practical middle portion temperature of the outdoor heat exchanger for acquiring the air-conditioning；
7th temperature sensor, for acquiring the actual entry temperature of the outdoor heat exchanger；
8th temperature sensor, the actual entry temperature of the indoor heat exchanger for acquiring the air-conditioning；
In cooling mode, the controller is also used to, obtain prestore in the refrigeration mode and in the indoor environment temperature The standard temperature of the heat exchanger of air-conditioning when degree, the outdoor environment temperature and the running frequency, wherein the heat exchange The standard temperature of device includes that the middle portion temperature standard value of the outdoor heat exchanger and the first middle portion temperature difference threshold value, the outdoor are changed Inlet temperature standard value and first entrance temperature difference threshold, the inlet temperature standard value of the indoor heat exchanger and second of hot device enter Mouth temperature difference threshold, and when meeting the following conditions, judge that obstruction failure: the outdoor heat exchange occurs for the throttling set of the air-conditioning The difference of the middle portion temperature standard value of the practical middle portion temperature and outdoor heat exchanger of device is greater than the first middle portion temperature difference threshold Value, also, the actual entry temperature of the outdoor heat exchanger and the difference of the inlet temperature standard value of the outdoor heat exchanger are big In the first entrance temperature difference threshold, also, the actual entry temperature of the indoor heat exchanger and entering for the indoor heat exchanger The difference of mouth standard temperature is greater than the second entrance temperature difference threshold.
10. the device of diagnosis air-conditioning obstruction failure according to claim 8, which is characterized in that described device further include:
7th temperature sensor, the actual entry temperature of the outdoor heat exchanger for acquiring the air-conditioning；
8th temperature sensor, the actual entry temperature of the indoor heat exchanger for acquiring the air-conditioning；
9th temperature sensor, for acquiring the practical middle portion temperature of the indoor heat exchanger；
In a heating mode, the controller is also used to, obtain prestore in the heating mode and in the indoor environment temperature The standard temperature of the heat exchanger of air-conditioning when degree, the outdoor environment temperature and the running frequency, wherein the heat exchange The standard temperature of device includes that the middle portion temperature standard value of the indoor heat exchanger and the second middle portion temperature difference threshold value, the interior are changed The inlet temperature standard value of hot device and the inlet temperature standard value and the 4th of third entrance temperature difference threshold, the outdoor heat exchanger enter Mouth temperature difference threshold, and when meeting the following conditions, judge that obstruction failure occurs for the throttling set of the air-conditioning: the interior heat exchange The difference of the middle portion temperature standard value of the practical middle portion temperature and indoor heat exchanger of device is greater than the second middle portion temperature difference threshold Value, also, the actual entry temperature of the indoor heat exchanger and the difference of the inlet temperature standard value of the indoor heat exchanger are big In the third entrance temperature difference threshold, also, the actual entry temperature of the outdoor heat exchanger and entering for the outdoor heat exchanger The difference of mouth standard temperature is greater than the 4th entrance temperature difference threshold.
11. the device of diagnosis air-conditioning obstruction failure according to claim 9 or 10, which is characterized in that described device is also wrapped Include communication unit, the communication unit is used to obtain the ability outputting standard value of the air-conditioning and power standard value, described from cloud platform The standard temperature of the standard temperature of compressor and the heat exchanger.
12. according to the device of the described in any item diagnosis air-conditioning obstruction failures of claim 7-10, which is characterized in that described device It further include alarm, the alarm is used to carry out warning note when diagnosing the air-conditioning and obstruction failure occurring.
13. a kind of air-conditioning, which is characterized in that the air-conditioning includes compressor, four-way valve, throttling set, indoor heat exchanger and room External heat exchanger, and, such as the device of the described in any item diagnosis air-conditioning obstruction failures of claim 7-12.
CN201811163192.2A 2018-09-30 2018-09-30 Method and apparatus for diagnosing blocking fault of air conditioner, air conditioner and storage medium Active CN109323365B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811163192.2A CN109323365B (en) 2018-09-30 2018-09-30 Method and apparatus for diagnosing blocking fault of air conditioner, air conditioner and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811163192.2A CN109323365B (en) 2018-09-30 2018-09-30 Method and apparatus for diagnosing blocking fault of air conditioner, air conditioner and storage medium

Publications (2)

Publication Number Publication Date
CN109323365A true CN109323365A (en) 2019-02-12
CN109323365B CN109323365B (en) 2021-11-19

Family

ID=65266631

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811163192.2A Active CN109323365B (en) 2018-09-30 2018-09-30 Method and apparatus for diagnosing blocking fault of air conditioner, air conditioner and storage medium

Country Status (1)

Country Link
CN (1) CN109323365B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110094842A (en) * 2019-04-16 2019-08-06 青岛海尔空调电子有限公司 Running state of air conditioner monitoring method
CN110440392A (en) * 2019-08-09 2019-11-12 芜湖美智空调设备有限公司 Detection method, system and the air-conditioning of air-conditioning
CN110782191A (en) * 2019-12-31 2020-02-11 汇网电气有限公司 Cloud platform based power grid switch cabinet remote management method and system
CN111397090A (en) * 2020-03-26 2020-07-10 广东美的制冷设备有限公司 Air conditioner detection method, air conditioner and computer readable storage medium
CN111895652A (en) * 2020-07-06 2020-11-06 华帝股份有限公司 Gas water heater and control method thereof
CN111999083A (en) * 2020-08-06 2020-11-27 珠海格力电器股份有限公司 Standard machine monitoring method and device and storage medium
CN112182858A (en) * 2020-09-14 2021-01-05 新誉轨道交通科技有限公司 Method and system for predicting badness of air-conditioning refrigeration system of standard motor train unit
CN113280417A (en) * 2021-05-17 2021-08-20 河南科技大学 Performance degradation diagnosis method for water chilling unit compressor
CN113465133A (en) * 2020-03-30 2021-10-01 广东美的制冷设备有限公司 Air conditioner control method, air conditioner and medium
CN113654183A (en) * 2021-07-30 2021-11-16 青岛海尔空调电子有限公司 Fault monitoring method of air conditioning unit
CN113847705A (en) * 2021-09-30 2021-12-28 广东美的制冷设备有限公司 Air conditioner, quick detection method and device thereof and storage medium
CN114216210A (en) * 2021-12-20 2022-03-22 珠海格力电器股份有限公司 Method for judging blocking condition of refrigeration system and air conditioner

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005188290A (en) * 2003-12-24 2005-07-14 Sanden Corp Control device of variable displacement compressor
CN1737448A (en) * 2005-06-20 2006-02-22 珠海格力电器股份有限公司 Air conditioner capable of diagnosing failure of refrigerant shortage and system block and diagnosis method thereof
CN1928448A (en) * 2006-10-12 2007-03-14 珠海格力电器股份有限公司 Air conditioner with refrigerating medium lack and accident detection functions and method for detecting accidents
US20090103989A1 (en) * 2007-10-17 2009-04-23 Remco International , Inc. Method of dynamic energy-saving superconductive transporting of medium flow
CN101680688A (en) * 2006-09-18 2010-03-24 开利公司 Refrigerant system wtih expansion device bypass
CN104101051A (en) * 2014-06-24 2014-10-15 广东美的集团芜湖制冷设备有限公司 Air conditioner and detection control method and device for abnormal coolant circulation of air conditioner
CN104913457A (en) * 2015-06-16 2015-09-16 杨志荣 Air capacity control method of air purifying device and air purifying device
CN105065249A (en) * 2015-08-31 2015-11-18 珠海格力电器股份有限公司 Compressor performance detection device, air-conditioning system provided with same and control method
CN105465970A (en) * 2015-12-31 2016-04-06 广东美的制冷设备有限公司 Disposal method and disposal device for greasy blockage of air conditioner system and air conditioner
KR20160047622A (en) * 2014-10-22 2016-05-03 김경복 input/outputdevice
CN107421058A (en) * 2017-05-09 2017-12-01 广东美的制冷设备有限公司 The control method of air conditioner, the control device of air conditioner and air conditioner
CN107461883A (en) * 2017-07-27 2017-12-12 广东美的制冷设备有限公司 Detection method, the system that air conditioner and its throttling arrangement block
CN107490156A (en) * 2017-09-27 2017-12-19 广东美的暖通设备有限公司 Three control air-conditionings and its method for diagnosing faults
CN108036462A (en) * 2017-11-29 2018-05-15 广东美的制冷设备有限公司 Oil of air conditioner blocks up the detection method and air conditioner of failure
CN108050661A (en) * 2017-11-29 2018-05-18 广东美的制冷设备有限公司 Oil of air conditioner blocks up the detection method and air conditioner of failure
CN108105940A (en) * 2017-11-29 2018-06-01 广东美的制冷设备有限公司 Oil of air conditioner blocks up the detection method and air conditioner of failure
CN108488997A (en) * 2018-05-08 2018-09-04 广东美的制冷设备有限公司 Air conditioner and its control method and computer readable storage medium

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005188290A (en) * 2003-12-24 2005-07-14 Sanden Corp Control device of variable displacement compressor
CN1737448A (en) * 2005-06-20 2006-02-22 珠海格力电器股份有限公司 Air conditioner capable of diagnosing failure of refrigerant shortage and system block and diagnosis method thereof
CN101680688A (en) * 2006-09-18 2010-03-24 开利公司 Refrigerant system wtih expansion device bypass
CN1928448A (en) * 2006-10-12 2007-03-14 珠海格力电器股份有限公司 Air conditioner with refrigerating medium lack and accident detection functions and method for detecting accidents
US20090103989A1 (en) * 2007-10-17 2009-04-23 Remco International , Inc. Method of dynamic energy-saving superconductive transporting of medium flow
CN104101051A (en) * 2014-06-24 2014-10-15 广东美的集团芜湖制冷设备有限公司 Air conditioner and detection control method and device for abnormal coolant circulation of air conditioner
KR20160047622A (en) * 2014-10-22 2016-05-03 김경복 input/outputdevice
CN104913457A (en) * 2015-06-16 2015-09-16 杨志荣 Air capacity control method of air purifying device and air purifying device
CN105065249A (en) * 2015-08-31 2015-11-18 珠海格力电器股份有限公司 Compressor performance detection device, air-conditioning system provided with same and control method
CN105465970A (en) * 2015-12-31 2016-04-06 广东美的制冷设备有限公司 Disposal method and disposal device for greasy blockage of air conditioner system and air conditioner
CN107421058A (en) * 2017-05-09 2017-12-01 广东美的制冷设备有限公司 The control method of air conditioner, the control device of air conditioner and air conditioner
CN107461883A (en) * 2017-07-27 2017-12-12 广东美的制冷设备有限公司 Detection method, the system that air conditioner and its throttling arrangement block
CN107490156A (en) * 2017-09-27 2017-12-19 广东美的暖通设备有限公司 Three control air-conditionings and its method for diagnosing faults
CN108036462A (en) * 2017-11-29 2018-05-15 广东美的制冷设备有限公司 Oil of air conditioner blocks up the detection method and air conditioner of failure
CN108050661A (en) * 2017-11-29 2018-05-18 广东美的制冷设备有限公司 Oil of air conditioner blocks up the detection method and air conditioner of failure
CN108105940A (en) * 2017-11-29 2018-06-01 广东美的制冷设备有限公司 Oil of air conditioner blocks up the detection method and air conditioner of failure
CN108488997A (en) * 2018-05-08 2018-09-04 广东美的制冷设备有限公司 Air conditioner and its control method and computer readable storage medium

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
孟强华: "《家庭轿车驾驶维护300问》", 30 April 2011 *
梁俊武: "制冷系统堵塞的原因分析和处理", 《中国新技术新产品》 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110094842B (en) * 2019-04-16 2021-11-02 青岛海尔空调电子有限公司 Air conditioner running state monitoring method
CN110094842A (en) * 2019-04-16 2019-08-06 青岛海尔空调电子有限公司 Running state of air conditioner monitoring method
CN110440392A (en) * 2019-08-09 2019-11-12 芜湖美智空调设备有限公司 Detection method, system and the air-conditioning of air-conditioning
CN110782191A (en) * 2019-12-31 2020-02-11 汇网电气有限公司 Cloud platform based power grid switch cabinet remote management method and system
CN110782191B (en) * 2019-12-31 2020-05-05 汇网电气有限公司 Cloud platform based power grid switch cabinet remote management method and system
CN111397090A (en) * 2020-03-26 2020-07-10 广东美的制冷设备有限公司 Air conditioner detection method, air conditioner and computer readable storage medium
CN113465133A (en) * 2020-03-30 2021-10-01 广东美的制冷设备有限公司 Air conditioner control method, air conditioner and medium
CN111895652A (en) * 2020-07-06 2020-11-06 华帝股份有限公司 Gas water heater and control method thereof
CN111999083A (en) * 2020-08-06 2020-11-27 珠海格力电器股份有限公司 Standard machine monitoring method and device and storage medium
CN112182858A (en) * 2020-09-14 2021-01-05 新誉轨道交通科技有限公司 Method and system for predicting badness of air-conditioning refrigeration system of standard motor train unit
CN113280417A (en) * 2021-05-17 2021-08-20 河南科技大学 Performance degradation diagnosis method for water chilling unit compressor
CN113654183A (en) * 2021-07-30 2021-11-16 青岛海尔空调电子有限公司 Fault monitoring method of air conditioning unit
WO2023005323A1 (en) * 2021-07-30 2023-02-02 青岛海尔空调电子有限公司 Fault monitoring method for air conditioning unit
CN113847705A (en) * 2021-09-30 2021-12-28 广东美的制冷设备有限公司 Air conditioner, quick detection method and device thereof and storage medium
CN113847705B (en) * 2021-09-30 2022-11-18 广东美的制冷设备有限公司 Air conditioner, quick detection method and device thereof and storage medium
CN114216210A (en) * 2021-12-20 2022-03-22 珠海格力电器股份有限公司 Method for judging blocking condition of refrigeration system and air conditioner

Also Published As

Publication number Publication date
CN109323365B (en) 2021-11-19

Similar Documents

Publication Publication Date Title
CN109323365A (en) The method and apparatus and air-conditioning and storage medium of diagnosis air-conditioning obstruction failure
US11009245B2 (en) Method and system for proactively and remotely diagnosing an HVAC system
CN106030221B (en) Heat pump system with refrigerant charging diagnostic function
KR102364621B1 (en) Air-conditioner System and Method thereof
CN104896669B (en) Air conditioner and its protection control method
EP3572746B1 (en) Refrigerator for diagnosing cause of abnormal state
CN104406453B (en) The control device of condenser on-line cleaning equipment and control method and central air-conditioning
JP4290705B2 (en) Diagnostic method and diagnostic system for air conditioner
EP3795915B1 (en) Malfunction diagnosis system
CN107490156B (en) Three control air-conditionings and its method for diagnosing faults
CN108758862A (en) Outdoor unit and its detection method, device and air-conditioner set
KR101962920B1 (en) Apparatus and method for monitoring cooling system
JP2024026767A (en) Work support methods and programs
EP3745055B1 (en) State analysis system and state analysis device
JP2005274059A (en) Refrigerator diagnosis method and refrigerator using the same
JP2005309724A (en) Abnormal state diagnostic system and abnormal state diagnostic method
US20240044534A1 (en) Monitoring and identifying changes to heating ventilation and air conditioning (hvac) conditions
JP2005098633A (en) Diagnosing device for low-temperature appliance loading two-stage compressor, and remote monitoring system of low-temperature appliance
CN113606658B (en) Air conditioner, and operation data monitoring method, equipment and storage medium thereof
WO2023171005A1 (en) Cooling/heating equipment diagnostic system
CN110701727B (en) Method and system for detecting faults in an HVAC system and memory
KR20170139990A (en) Apparatus and method for monitoring cooling system
JPH11223432A (en) Method and apparatus for diagnosing fault of absorption type refrigerator
JP2006266609A (en) Abnormality diagnosis system for air conditioner
CN116412470A (en) Condensate water circulating system, intelligent control device and control method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant