CN104034998A - Diagnosis method and system for wrong connection of internal and external machine connecting wires of fixed-frequency air conditioner - Google Patents
Diagnosis method and system for wrong connection of internal and external machine connecting wires of fixed-frequency air conditioner Download PDFInfo
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- CN104034998A CN104034998A CN201410280402.1A CN201410280402A CN104034998A CN 104034998 A CN104034998 A CN 104034998A CN 201410280402 A CN201410280402 A CN 201410280402A CN 104034998 A CN104034998 A CN 104034998A
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title abstract description 12
- 238000005057 refrigeration Methods 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000002405 diagnostic procedure Methods 0.000 claims description 14
- 238000004378 air conditioning Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention provides a diagnosis method and a diagnosis system for connecting line misconnection of an indoor unit and an outdoor unit of a fixed frequency air conditioner, which determine whether a signal line is misconnected or not by detecting the temperature difference value before and after an indoor pipe enters each operation mode for a preset time period and the comparison result of the temperature difference value and the preset temperature difference value when the fixed frequency air conditioner is in a refrigeration mode, a heating mode or an external fan operation mode, and can diagnose the misconnected signal line, thereby facilitating the reconnection of a user, ensuring the operation of the fixed frequency air conditioner in a normal state, and preventing quality problems and after-sale problems caused by the wiring error of the signal line.
Description
Technical field
The present invention relates to fixed frequency air conditioner technical field, more particularly, relate to diagnostic method and the diagnostic system of the inside and outside machine connecting line wrong of a kind of fixed frequency air conditioner.
Background technology
The inside and outside machine connecting line of fixed frequency air conditioner is divided into power lead (live wire and zero line) and signal wire (compressor line, four-way valve line and outer blower fan line), after fixed frequency air conditioner is on sale through often there is the situation of wrong line, wherein, power lead and signal wire wrong, in after fixed frequency air conditioner powers on, machine controller is reactionless, and therefore this wrong line situation ratio is easier to diagnose out; And between signal wire when wrong, often fixed frequency air conditioner can also move, and therefore, is not easy to diagnose out.And; once there is the situation of wrong line in signal wire; can cause due to the confusion of air-conditioning system operation the generation of a lot of unexpected problems; for example; when four-way valve and outer blower fan connect instead, in the time that heating mode enters anti-high temperature protection, can be four-way valve as outer blower fan and directly be cut off; now, due to system pressure also imbalance will cause four-way valve abnormal sound even to damage.Therefore, how providing diagnostic method and the diagnostic system of the inside and outside machine connecting line wrong of a kind of fixed frequency air conditioner, is those skilled in the art's technical matterss urgently to be resolved hurrily with the situation of diagnosing out in time inside and outside machine connecting line wrong.
Summary of the invention
In view of this, the invention provides diagnostic method and the diagnostic system of the inside and outside machine connecting line wrong of a kind of fixed frequency air conditioner, to solve the prior art problem of discovery signals line wrong in time, thereby ensure that operation of constant-frequency air conditioner is in the time of normal state, prevent the quality problems that cause because of signal wire wiring error and problem after sale.
A diagnostic method for the inside and outside machine connecting line wrong of fixed frequency air conditioner, comprising:
In test/trial running mode, obtain fixed frequency air conditioner entering the first temperature approach of comparing indoor pipe while just entering this refrigeration mode after refrigeration mode the first Preset Time section;
If described the first temperature approach exceedes the first default temperature approach, out the connecting line of blower fan and the connecting line of four-way valve connect instead in diagnosis;
In test/trial running mode, obtain described fixed frequency air conditioner and in the time just entering refrigeration mode, compare the second temperature approach that enters described indoor pipe after this refrigeration mode second Preset Time section;
If described the second temperature approach, lower than the second default temperature approach, is converted to heating mode by described fixed frequency air conditioner by current refrigeration mode;
Obtain described fixed frequency air conditioner enter after heating mode the 3rd Preset Time section, compare while just entering this heating mode described in the 3rd temperature approach of indoor pipe;
If described the 3rd temperature approach, lower than the 3rd default temperature approach, diagnoses out the connecting line of compressor and the connecting line of four-way valve to connect instead;
In test/trial running mode, obtain described fixed frequency air conditioner and outside only just entering, compare the 4th temperature approach that enters described indoor pipe after this outer blower fan operational mode the 4th Preset Time section when blower fan operational mode;
If described the 4th temperature approach exceedes the 4th default temperature approach, diagnose out the connecting line of compressor and the connecting line of outer blower fan to connect instead.
Preferably, diagnosis out the connecting line of blower fan and the connecting line of four-way valve connect instead, or the connecting line of compressor and the connecting line of four-way valve connect instead, otherwise or after the connecting line of compressor and the connecting line of outer blower fan connect, also comprise:
All loads of controlling described fixed frequency air conditioner are out of service.
Preferably, also comprise:
The display of controlling described fixed frequency air conditioner shows corresponding failure code according to diagnostic result.
Preferably, described the first Preset Time section, described the second Preset Time section, described the 3rd Preset Time section are not identical with described the 4th Preset Time Duan Quan.
Preferably, described the first temperature approach, described the second temperature approach, described the 3rd temperature approach are entirely not identical with described the 4th temperature approach.
A diagnostic system for the inside and outside machine connecting line wrong of fixed frequency air conditioner, comprising:
The first acquiring unit, at test/trial running mode, obtains fixed frequency air conditioner entering the first temperature approach of comparing indoor pipe while just entering this refrigeration mode after refrigeration mode the first Preset Time section;
The first judging unit, for judging whether described the first temperature approach exceedes the first default temperature approach;
The first diagnosis unit, if exceed the described first default temperature approach for described the first temperature approach, out the connecting line of blower fan and the connecting line of four-way valve connect instead in diagnosis;
Second acquisition unit, if do not exceed the described first default temperature approach for described the first temperature approach, in test/trial running mode, obtain described fixed frequency air conditioner and in the time just entering refrigeration mode, compare the second temperature approach that enters described indoor pipe after this refrigeration mode second Preset Time section;
Converting unit, if preset temperature approach for described the second temperature approach lower than second, is converted to heating mode by described fixed frequency air conditioner by current refrigeration mode;
The 3rd acquiring unit, for obtain described fixed frequency air conditioner enter after heating mode the 3rd Preset Time section, compare while just entering this heating mode described in the 3rd temperature approach of indoor pipe;
The second judging unit, for judging that whether described the 3rd temperature approach is lower than the 3rd default temperature approach;
Second opinion unit, if preset temperature approach for described the 3rd temperature approach lower than the described the 3rd, diagnoses out the connecting line of compressor and the connecting line of four-way valve to connect instead;
The 4th acquiring unit, if be not less than the described the 3rd default temperature approach for described the 3rd temperature approach, in test/trial running mode, obtain described fixed frequency air conditioner and outside only just entering, compare the 4th temperature approach that enters described indoor pipe after this outer blower fan operational mode the 4th Preset Time section when blower fan operational mode;
The 3rd judging unit, for judging whether described the 4th temperature approach exceedes the 4th default temperature approach;
The 3rd diagnosis unit, if exceed the described the 4th default temperature approach for described the 4th temperature approach, diagnoses out the connecting line of compressor and the connecting line of outer blower fan to connect instead;
Return to unit, if do not exceed the described the 4th default temperature approach for described the 4th temperature approach, return to described the first acquiring unit.
Preferably, also comprise:
The first control module, connect instead for go out in described the first diagnosis unit diagnosis connecting line of blower fan and the connecting line of four-way valve, or described second opinion unit diagnosis goes out the connecting line of compressor and the connecting line of four-way valve connects instead, otherwise or after described the 3rd diagnosis unit diagnoses out the connecting line of compressor and the connecting line of outer blower fan to connect, all loads of controlling described fixed frequency air conditioner are out of service.
Preferably, also comprise:
The second control module, shows corresponding failure code for the display of controlling described fixed frequency air conditioner according to diagnostic result.
Preferably, described the first Preset Time section, described the second Preset Time section, described the 3rd Preset Time section are not identical with described the 4th Preset Time Duan Quan.
Preferably, described the first temperature approach, described the second temperature approach, described the 3rd temperature approach are entirely not identical with described the 4th temperature approach.
Can find out from above-mentioned technical scheme, the invention provides diagnostic method and the diagnostic system of the inside and outside machine connecting line wrong of a kind of fixed frequency air conditioner, by detecting fixed frequency air conditioner at refrigeration mode, when heating mode or outer blower fan operational mode, indoor pipe is entering the temperature approach of every kind of operational mode Preset Time section front and back, and the big or small comparative result of this temperature approach and default temperature approach is determined whether wrong of signal wire, can also diagnose out the signal wire of wrong simultaneously, thereby can facilitate user to reconnect, ensure that operation of constant-frequency air conditioner is in normal condition, prevent the quality problems that cause because of signal wire wiring error and problem after sale.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the diagnostic method process flow diagram of the inside and outside machine connecting line wrong of the disclosed a kind of fixed frequency air conditioner of the embodiment of the present invention;
Fig. 2 is the structural representation of the diagnostic system of the inside and outside machine connecting line wrong of the disclosed a kind of fixed frequency air conditioner of the embodiment of the present invention;
Fig. 3 is the structural representation of the diagnostic system of the inside and outside machine connecting line wrong of the disclosed a kind of fixed frequency air conditioner of the embodiment of the present invention;
Fig. 4 is the structural representation of the diagnostic system of the inside and outside machine connecting line wrong of the disclosed a kind of fixed frequency air conditioner of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses diagnostic method and the diagnostic system of the inside and outside machine connecting line wrong of a kind of fixed frequency air conditioner, to solve the prior art problem of discovery signals line wrong in time, thereby ensure that operation of constant-frequency air conditioner is in the time of normal state, prevent the quality problems that cause because of signal wire wiring error and problem after sale.
Referring to Fig. 1, the diagnostic method process flow diagram of the inside and outside machine connecting line wrong of the disclosed a kind of fixed frequency air conditioner of the embodiment of the present invention, comprises step:
S11, in test/trial running mode, obtain fixed frequency air conditioner entering the first temperature approach of comparing indoor pipe while just entering this refrigeration mode after refrigeration mode the first Preset Time section;
Concrete, first, the first initial temperature value T of indoor pipe when obtaining air-conditioner with fixed frequency and just having entered refrigeration mode
10dEG C; Secondly, obtain air-conditioner with fixed frequency at the first Preset Time section t
1the first temperature value T of this indoor pipe after min
11dEG C; Finally, by the first temperature value T
11dEG C deduct the first initial temperature value T
10dEG C, obtain the first temperature approach.
If described the first temperature approach of S12 exceedes the first default temperature approach, out the connecting line of blower fan and the connecting line of four-way valve connect instead in diagnosis;
Wherein, the first default temperature approach T
1dEG C size determine according to actual conditions, the present invention does not limit at this.
It will be understood by those skilled in the art that, when fixed frequency air conditioner is during in refrigeration mode, under normal circumstances, the temperature of indoor pipe should reduce gradually, the first temperature approach is less than zero, exceed the first default temperature approach (the first default temperature approach is positive integer) if judge the first temperature approach, show the signal wire wrong of fixed frequency air conditioner, be specially the connecting line of outer blower fan and the connecting line of four-way valve connects instead.
S13, in test/trial running mode, obtain described fixed frequency air conditioner and in the time just entering refrigeration mode, compare the second temperature approach that enters described indoor pipe after this refrigeration mode second Preset Time section;
Concrete, first, the second initial temperature value T of indoor pipe when obtaining air-conditioner with fixed frequency and just having entered refrigeration mode
22dEG C; Secondly, obtain air-conditioner with fixed frequency at the second Preset Time section t
20the second temperature value T of this indoor pipe after min
23dEG C; Finally, by the second initial temperature value T
22dEG C deduct the second temperature value T
23dEG C, obtain the second temperature approach.
If described the second temperature approach of S14, lower than the second default temperature approach, is converted to heating mode by described fixed frequency air conditioner by current refrigeration mode;
Wherein, the second default temperature approach T
20dEG C size determine according to actual conditions, the present invention does not limit at this.
S15, obtain described fixed frequency air conditioner enter after heating mode the 3rd Preset Time section, compare while just entering this heating mode described in the 3rd temperature approach of indoor pipe;
Concrete, first, the 3rd initial temperature value T of indoor pipe when obtaining air-conditioner with fixed frequency and just having entered heating mode
24dEG C; Secondly, obtain air-conditioner with fixed frequency at the 3rd Preset Time section t
21the 3rd temperature value T of this indoor pipe after min
25dEG C; Finally, by the 3rd temperature value T
25dEG C deduct the 3rd initial temperature value T
24dEG C, obtain the 3rd temperature approach.
If described the 3rd temperature approach of S16, lower than the 3rd default temperature approach, diagnoses out the connecting line of compressor and the connecting line of four-way valve to connect instead;
Wherein, the 3rd default temperature approach T
21dEG C size determine according to actual conditions, the present invention does not limit at this.
It should be noted that, four-way valve is a kind of device that switches air conditioner refrigerating and heat, and four-way valve is in the time of off-position, and air-conditioning is in refrigerating state; Four-way valve is in the time of "on" position, and air-conditioning is in heating state.Therefore, in the time that air-conditioning enters refrigeration mode, if when the temperature fall (i.e. the second temperature approach) that detects indoor pipe lower than the second default temperature approach, does not reach default temperature fall, tentatively judge that the connecting line of four-way valve connects instead; Then, fixed frequency air conditioner is converted to heating mode by current refrigeration mode, if detect the temperature rise amplitude (i.e. the 3rd temperature approach) of indoor pipe lower than the 3rd default temperature approach,, while not reaching default temperature rising amplitude, diagnose out the connecting line of four-way valve and the connecting line of compressor to connect instead.
S17, in test/trial running mode, obtain described fixed frequency air conditioner and outside only just entering, compare the 4th temperature approach that enters described indoor pipe after this outer blower fan operational mode the 4th Preset Time section when blower fan operational mode;
Concrete, first, the 4th initial temperature value T of indoor pipe when obtaining air-conditioner with fixed frequency and just having entered outer blower fan operational mode only
30dEG C; Secondly, obtain air-conditioner with fixed frequency at the 4th Preset Time section t
3the 4th temperature value T of this indoor pipe after min
31dEG C; Finally, by the 4th initial temperature value T
30dEG C deduct the 4th temperature value T
31dEG C, obtain the 4th temperature approach.
Wherein, in the time that the 4th temperature approach is greater than zero, show that the temperature of indoor pipe declines, otherwise, in the time that the 4th temperature approach is less than zero, show the temperature rise of indoor pipe.
If described the 4th temperature approach of S18 exceedes the 4th default temperature approach, diagnose out the connecting line of compressor and the connecting line of outer blower fan to connect instead.
Wherein, the 4th default temperature approach T
3dEG C size determine according to actual conditions, the present invention does not limit at this.
It will be understood by those skilled in the art that, outside fixed frequency air conditioner only enters when blower fan operational mode, under normal circumstances, the temperature of indoor pipe only has trace to change, exceed the 4th preset temperature value if detect the range of temperature (i.e. the 4th temperature approach) of indoor pipe, show that the connecting line of compressor and the connecting line of outer blower fan connect instead.
In summary it can be seen, the present invention by detect fixed frequency air conditioner refrigeration mode, heating mode or outside when blower fan operational mode, indoor pipe is entering the temperature approach of every kind of operational mode Preset Time section front and back, and the big or small comparative result of this temperature approach and default temperature approach is determined whether wrong of signal wire, can also diagnose out the signal wire of wrong simultaneously, thereby can facilitate user to reconnect, ensure that operation of constant-frequency air conditioner is in normal condition, prevent the quality problems that cause because of signal wire wiring error and problem after sale.
It should be noted is that, in the present embodiment, whether the judgement connecting line of outer blower fan and the connecting line of four-way valve connect anti-process, judge whether the connecting line of compressor and the connecting line of four-way valve connect anti-process, and judge whether the connecting line of compressor and the connecting line of outer blower fan connect anti-process, in practical implementation, there is no sequencing, be not limited to the disclosed execution sequence of the present embodiment.
Be understandable that, for avoiding because signal wire wrong causes operation of constant-frequency air conditioner confusion, thus after diagnosing out signal wire to go wrong, need stop loaded operation, to facilitate user to reconnect.
Therefore,, after execution of step S12 or execution of step S16 or execution of step S18, can also comprise step;
All loads of controlling described fixed frequency air conditioner are out of service.
It will be appreciated by persons skilled in the art that quick failure judgement type for the convenience of the user, can also comprise step:
The display of controlling described fixed frequency air conditioner shows corresponding failure code according to diagnostic result.
Wherein, adopt different failure codes for the wrong situation of unlike signal line, with the signal wire of reminding user line order wrong, thus the timely more signal wire of main track order wrong.
Preferably, failure code can be the combination of English alphabet and English alphabet, can be also English alphabet and digital combination, and the present invention does not limit at this.
It should be noted that, the first Preset Time section, the second Preset Time section, the 3rd Preset Time section and the 4th time period in above-described embodiment can be entirely not identical, and also can part identical, the concrete value of each time period be determined according to actual conditions.
Because fixed frequency air conditioner is when the different operational mode, the amplitude of variation of temperature is required also different, therefore, in above-described embodiment, the first temperature approach, the second temperature approach, the 3rd temperature approach and the 4th temperature approach are entirely not identical.Certainly,, under some particular case, do not get rid of in the first temperature approach, the second temperature approach, the 3rd temperature approach and the 4th temperature approach yet and have the situation that part is identical.
Embodiment is corresponding with said method, the invention also discloses the diagnostic system of the inside and outside machine connecting line wrong of a kind of fixed frequency air conditioner.
Referring to Fig. 2, the structural representation of the diagnostic system of the inside and outside machine connecting line wrong of the disclosed a kind of fixed frequency air conditioner of the embodiment of the present invention, comprising:
The first acquiring unit 21, at test/trial running mode, obtains fixed frequency air conditioner entering the first temperature approach of comparing indoor pipe while just entering this refrigeration mode after refrigeration mode the first Preset Time section;
The first diagnosis unit 22, if exceed the first default temperature approach for described the first temperature approach, out the connecting line of blower fan and the connecting line of four-way valve connect instead in diagnosis;
Wherein, the first default temperature approach T
1dEG C size determine according to actual conditions, the present invention does not limit at this.
It will be understood by those skilled in the art that, when fixed frequency air conditioner is during in refrigeration mode, under normal circumstances, the temperature of indoor pipe should reduce gradually, the first temperature approach is less than zero, exceed the first default temperature approach (the first default temperature approach is positive integer) if judge the first temperature approach, show the signal wire wrong of fixed frequency air conditioner, be specially the connecting line of outer blower fan and the connecting line of four-way valve connects instead.
Second acquisition unit 23, at test/trial running mode, obtains described fixed frequency air conditioner and in the time just entering refrigeration mode, compares the second temperature approach that enters described indoor pipe after this refrigeration mode second Preset Time section;
Converting unit 24, if preset temperature approach for described the second temperature approach lower than second, is converted to heating mode by described fixed frequency air conditioner by current refrigeration mode;
Wherein, the second default temperature approach T
20dEG C size determine according to actual conditions, the present invention does not limit at this.
The 3rd acquiring unit 25, for obtain described fixed frequency air conditioner enter after heating mode the 3rd Preset Time section, compare while just entering this heating mode described in the 3rd temperature approach of indoor pipe;
Second opinion unit 26, if preset temperature approach for described the 3rd temperature approach lower than the 3rd, diagnoses out the connecting line of compressor and the connecting line of four-way valve to connect instead;
Wherein, the 3rd default temperature approach T
21dEG C size determine according to actual conditions, the present invention does not limit at this.
It should be noted that, four-way valve is a kind of device that switches air conditioner refrigerating and heat, and four-way valve is in the time of off-position, and air-conditioning is in refrigerating state; Four-way valve is in the time of "on" position, and air-conditioning is in heating state.Therefore, in the time that air-conditioning enters refrigeration mode, if when the temperature fall (i.e. the second temperature approach) that detects indoor pipe lower than the second default temperature approach, does not reach default temperature fall, tentatively judge that the connecting line of four-way valve connects instead; Then, fixed frequency air conditioner is converted to heating mode by current refrigeration mode, if detect the temperature rise amplitude (i.e. the 3rd temperature approach) of indoor pipe lower than the 3rd default temperature approach,, while not reaching default temperature rising amplitude, diagnose out the connecting line of four-way valve and the connecting line of compressor to connect instead.
The 4th acquiring unit 27, at test/trial running mode, obtains described fixed frequency air conditioner and outside only just entering, compares the 4th temperature approach that enters described indoor pipe after this outer blower fan operational mode the 4th Preset Time section when blower fan operational mode;
The 3rd diagnosis unit 28, if exceed the 4th default temperature approach for described the 4th temperature approach, diagnoses out the connecting line of compressor and the connecting line of outer blower fan to connect instead.
Wherein, the 4th default temperature approach T
3dEG C size determine according to actual conditions, the present invention does not limit at this.
It will be understood by those skilled in the art that, outside fixed frequency air conditioner only enters when blower fan operational mode, under normal circumstances, the temperature of indoor pipe only has trace to change, exceed the 4th preset temperature value if detect the range of temperature (i.e. the 4th temperature approach) of indoor pipe, show that the connecting line of compressor and the connecting line of outer blower fan connect instead.
In summary it can be seen, the present invention by detect fixed frequency air conditioner refrigeration mode, heating mode or outside when blower fan operational mode, indoor pipe is entering the temperature approach of every kind of operational mode Preset Time section front and back, and the big or small comparative result of this temperature approach and default temperature approach is determined whether wrong of signal wire, can also diagnose out the signal wire of wrong simultaneously, thereby can facilitate user to reconnect, ensure that operation of constant-frequency air conditioner is in normal condition, prevent the quality problems that cause because of signal wire wiring error and problem after sale.
It should be noted is that, in the present embodiment, whether the judgement connecting line of outer blower fan and the connecting line of four-way valve connect anti-process (i.e. the first acquiring unit 21 and the first diagnosis unit 22), judge that whether the connecting line of compressor and the connecting line of four-way valve connect anti-process (is second acquisition unit 23, converting unit 24, the 3rd acquiring unit 25 and second opinion unit 26), and judge whether the connecting line of compressor and the connecting line of outer blower fan connect anti-process (the 4th acquiring unit 27 and the 3rd diagnosis unit 28), in practical implementation, there is no sequencing, be not limited to the disclosed execution sequence of the present embodiment.
For further optimizing above-described embodiment, referring to Fig. 3, the structural representation of the diagnostic system of the inside and outside machine connecting line wrong of the disclosed a kind of fixed frequency air conditioner of another embodiment of the present invention, in conjunction with Fig. 2 and Fig. 3, also comprises:
The first control module 29, connect instead for go out in the first diagnosis unit 22 diagnosis connecting line of blower fan and the connecting line of four-way valve, or second opinion unit 26 diagnoses out the connecting line of compressor and the connecting line of four-way valve to connect instead, otherwise or after the 3rd diagnosis unit 28 diagnoses out the connecting line of compressor and the connecting line of outer blower fan to connect, all loads of controlling described fixed frequency air conditioner are out of service.
Be understandable that, for avoiding because signal wire wrong causes operation of constant-frequency air conditioner confusion, thus after diagnosing out signal wire to go wrong, need stop loaded operation, to facilitate user to reconnect.
For further optimizing above-described embodiment, referring to Fig. 4, the structural representation of the diagnostic system of the inside and outside machine connecting line wrong of the disclosed a kind of fixed frequency air conditioner of another embodiment of the present invention, in conjunction with Fig. 3 and Fig. 4, also comprises:
The second control module 30, shows corresponding failure code for the display of controlling described fixed frequency air conditioner according to diagnostic result.
Wherein, adopt different failure codes for the wrong situation of unlike signal line, with the signal wire of reminding user line order wrong, thus the timely more signal wire of main track order wrong.
Preferably, failure code can be the combination of English alphabet and English alphabet, can be also English alphabet and digital combination, and the present invention does not limit at this.
It should be noted that, the first Preset Time section, the second Preset Time section, the 3rd Preset Time section and the 4th time period in above-described embodiment can be entirely not identical, and also can part identical, the concrete value of each time period be determined according to actual conditions.
Because fixed frequency air conditioner is when the different operational mode, the amplitude of variation of temperature is required also different, therefore, in above-described embodiment, the first temperature approach, the second temperature approach, the 3rd temperature approach and the 4th temperature approach are entirely not identical.Certainly,, under some particular case, do not get rid of in the first temperature approach, the second temperature approach, the 3rd temperature approach and the 4th temperature approach yet and have the situation that part is identical.
It should be noted that, in system embodiment, the same embodiment of the method for specific works principle of each ingredient does not limit herein.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a diagnostic method for the inside and outside machine connecting line wrong of fixed frequency air conditioner, is characterized in that, comprising:
In test/trial running mode, obtain fixed frequency air conditioner entering the first temperature approach of comparing indoor pipe while just entering this refrigeration mode after refrigeration mode the first Preset Time section;
If described the first temperature approach exceedes the first default temperature approach, out the connecting line of blower fan and the connecting line of four-way valve connect instead in diagnosis;
In test/trial running mode, obtain described fixed frequency air conditioner and in the time just entering refrigeration mode, compare the second temperature approach that enters described indoor pipe after this refrigeration mode second Preset Time section;
If described the second temperature approach, lower than the second default temperature approach, is converted to heating mode by described fixed frequency air conditioner by current refrigeration mode;
Obtain described fixed frequency air conditioner enter after heating mode the 3rd Preset Time section, compare while just entering this heating mode described in the 3rd temperature approach of indoor pipe;
If described the 3rd temperature approach, lower than the 3rd default temperature approach, diagnoses out the connecting line of compressor and the connecting line of four-way valve to connect instead;
In test/trial running mode, obtain described fixed frequency air conditioner and outside only just entering, compare the 4th temperature approach that enters described indoor pipe after this outer blower fan operational mode the 4th Preset Time section when blower fan operational mode;
If described the 4th temperature approach exceedes the 4th default temperature approach, diagnose out the connecting line of compressor and the connecting line of outer blower fan to connect instead.
2. diagnostic method according to claim 1, it is characterized in that, diagnosis out the connecting line of blower fan and the connecting line of four-way valve connect instead, or the connecting line of compressor and the connecting line of four-way valve connect instead, otherwise or after the connecting line of compressor and the connecting line of outer blower fan connect, also comprise:
All loads of controlling described fixed frequency air conditioner are out of service.
3. diagnostic method according to claim 1, is characterized in that, also comprises:
The display of controlling described fixed frequency air conditioner shows corresponding failure code according to diagnostic result.
4. diagnostic method according to claim 1, is characterized in that, described the first Preset Time section, described the second Preset Time section, described the 3rd Preset Time section are not identical with described the 4th Preset Time Duan Quan.
5. diagnostic method according to claim 1, is characterized in that, described the first temperature approach, described the second temperature approach, described the 3rd temperature approach are entirely not identical with described the 4th temperature approach.
6. a diagnostic system for the inside and outside machine connecting line wrong of fixed frequency air conditioner, is characterized in that, comprising:
The first acquiring unit, at test/trial running mode, obtains fixed frequency air conditioner entering the first temperature approach of comparing indoor pipe while just entering this refrigeration mode after refrigeration mode the first Preset Time section;
The first judging unit, for judging whether described the first temperature approach exceedes the first default temperature approach;
The first diagnosis unit, if exceed the described first default temperature approach for described the first temperature approach, out the connecting line of blower fan and the connecting line of four-way valve connect instead in diagnosis;
Second acquisition unit, if do not exceed the described first default temperature approach for described the first temperature approach, in test/trial running mode, obtain described fixed frequency air conditioner and in the time just entering refrigeration mode, compare the second temperature approach that enters described indoor pipe after this refrigeration mode second Preset Time section;
Converting unit, if preset temperature approach for described the second temperature approach lower than second, is converted to heating mode by described fixed frequency air conditioner by current refrigeration mode;
The 3rd acquiring unit, for obtain described fixed frequency air conditioner enter after heating mode the 3rd Preset Time section, compare while just entering this heating mode described in the 3rd temperature approach of indoor pipe;
The second judging unit, for judging that whether described the 3rd temperature approach is lower than the 3rd default temperature approach;
Second opinion unit, if preset temperature approach for described the 3rd temperature approach lower than the described the 3rd, diagnoses out the connecting line of compressor and the connecting line of four-way valve to connect instead;
The 4th acquiring unit, if be not less than the described the 3rd default temperature approach for described the 3rd temperature approach, in test/trial running mode, obtain described fixed frequency air conditioner and outside only just entering, compare the 4th temperature approach that enters described indoor pipe after this outer blower fan operational mode the 4th Preset Time section when blower fan operational mode;
The 3rd judging unit, for judging whether described the 4th temperature approach exceedes the 4th default temperature approach;
The 3rd diagnosis unit, if exceed the described the 4th default temperature approach for described the 4th temperature approach, diagnoses out the connecting line of compressor and the connecting line of outer blower fan to connect instead;
Return to unit, if do not exceed the described the 4th default temperature approach for described the 4th temperature approach, return to described the first acquiring unit.
7. diagnostic system according to claim 6, is characterized in that, also comprises:
The first control module, connect instead for go out in described the first diagnosis unit diagnosis connecting line of blower fan and the connecting line of four-way valve, or described second opinion unit diagnosis goes out the connecting line of compressor and the connecting line of four-way valve connects instead, otherwise or after described the 3rd diagnosis unit diagnoses out the connecting line of compressor and the connecting line of outer blower fan to connect, all loads of controlling described fixed frequency air conditioner are out of service.
8. diagnostic system according to claim 6, is characterized in that, also comprises:
The second control module, shows corresponding failure code for the display of controlling described fixed frequency air conditioner according to diagnostic result.
9. diagnostic system according to claim 6, is characterized in that, described the first Preset Time section, described the second Preset Time section, described the 3rd Preset Time section are not identical with described the 4th Preset Time Duan Quan.
10. diagnostic system according to claim 6, is characterized in that, described the first temperature approach, described the second temperature approach, described the 3rd temperature approach are entirely not identical with described the 4th temperature approach.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605734A (en) * | 2015-12-23 | 2016-05-25 | 珠海格力电器股份有限公司 | Method and device for determining whether fan motor of air conditioner is reversely rotated |
| CN105974263A (en) * | 2016-06-06 | 2016-09-28 | 珠海格力电器股份有限公司 | Motor wrong connection detection device and method |
| CN106124915A (en) * | 2016-06-22 | 2016-11-16 | 珠海格力电器股份有限公司 | Communication line misconnection detection device and method |
| CN106556109A (en) * | 2016-11-11 | 2017-04-05 | 广东美的暖通设备有限公司 | The wireline inspection method of air conditioning system and air conditioning system |
| CN107576024A (en) * | 2017-09-27 | 2018-01-12 | 广东美的暖通设备有限公司 | Fault detection method, the apparatus and system of multi-online air-conditioning system |
| CN108397855A (en) * | 2018-03-20 | 2018-08-14 | 广东美的制冷设备有限公司 | Air conditioner malfunction detection method, detection device, air conditioner and storage medium |
| CN108828375A (en) * | 2018-08-17 | 2018-11-16 | 国网江苏省电力有限公司电力科学研究院 | Air conditioning electricity monitoring system and monitoring method based on two-loop intelligent electric energy meter |
| CN109239521A (en) * | 2018-09-05 | 2019-01-18 | 格力电器（武汉）有限公司 | Wiring detection method and device |
| CN112798983A (en) * | 2020-12-30 | 2021-05-14 | 珠海格力电器股份有限公司 | Method and device for detecting connecting line of internal and external machines |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444047A (en) * | 2002-03-08 | 2003-09-24 | 三菱电机株式会社 | Error wiring detector for air conditioner |
| WO2008056943A1 (en) * | 2006-11-07 | 2008-05-15 | Lg Electronics Inc. | Air conditioner and reverse phase detection method thereof |
| KR20090022468A (en) * | 2007-08-30 | 2009-03-04 | 엘지전자 주식회사 | Apparatus and method for testing control circuit |
| CN201440112U (en) * | 2009-06-04 | 2010-04-21 | 宁波奥克斯空调有限公司 | Inverter air conditioner outdoor machine detection device |
| CN102221658A (en) * | 2011-03-02 | 2011-10-19 | 海尔集团公司 | Multi-split air-conditioning indoor and outdoor unit mistaken wiring detection method |
| CN203455433U (en) * | 2013-08-20 | 2014-02-26 | 广东美的制冷设备有限公司 | Air conditioner fault detection device and air conditioner fault detection system comprising same |
-
2014
- 2014-06-20 CN CN201410280402.1A patent/CN104034998B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444047A (en) * | 2002-03-08 | 2003-09-24 | 三菱电机株式会社 | Error wiring detector for air conditioner |
| WO2008056943A1 (en) * | 2006-11-07 | 2008-05-15 | Lg Electronics Inc. | Air conditioner and reverse phase detection method thereof |
| KR20090022468A (en) * | 2007-08-30 | 2009-03-04 | 엘지전자 주식회사 | Apparatus and method for testing control circuit |
| CN201440112U (en) * | 2009-06-04 | 2010-04-21 | 宁波奥克斯空调有限公司 | Inverter air conditioner outdoor machine detection device |
| CN102221658A (en) * | 2011-03-02 | 2011-10-19 | 海尔集团公司 | Multi-split air-conditioning indoor and outdoor unit mistaken wiring detection method |
| CN203455433U (en) * | 2013-08-20 | 2014-02-26 | 广东美的制冷设备有限公司 | Air conditioner fault detection device and air conditioner fault detection system comprising same |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605734B (en) * | 2015-12-23 | 2018-12-25 | 珠海格力电器股份有限公司 | Method and device for determining whether fan motor of air conditioner is reversely rotated |
| CN105605734A (en) * | 2015-12-23 | 2016-05-25 | 珠海格力电器股份有限公司 | Method and device for determining whether fan motor of air conditioner is reversely rotated |
| CN105974263A (en) * | 2016-06-06 | 2016-09-28 | 珠海格力电器股份有限公司 | Motor wrong connection detection device and method |
| CN106124915A (en) * | 2016-06-22 | 2016-11-16 | 珠海格力电器股份有限公司 | Communication line misconnection detection device and method |
| CN106124915B (en) * | 2016-06-22 | 2019-01-22 | 珠海格力电器股份有限公司 | Communication line misconnection detection device and method |
| CN106556109A (en) * | 2016-11-11 | 2017-04-05 | 广东美的暖通设备有限公司 | The wireline inspection method of air conditioning system and air conditioning system |
| CN106556109B (en) * | 2016-11-11 | 2019-11-22 | 广东美的暖通设备有限公司 | The wireline inspection method of air-conditioning system and air-conditioning system |
| CN107576024A (en) * | 2017-09-27 | 2018-01-12 | 广东美的暖通设备有限公司 | Fault detection method, the apparatus and system of multi-online air-conditioning system |
| CN108397855A (en) * | 2018-03-20 | 2018-08-14 | 广东美的制冷设备有限公司 | Air conditioner malfunction detection method, detection device, air conditioner and storage medium |
| CN108397855B (en) * | 2018-03-20 | 2020-05-05 | 广东美的制冷设备有限公司 | Air conditioner fault detection method and device, air conditioner and storage medium |
| CN108828375A (en) * | 2018-08-17 | 2018-11-16 | 国网江苏省电力有限公司电力科学研究院 | Air conditioning electricity monitoring system and monitoring method based on two-loop intelligent electric energy meter |
| CN108828375B (en) * | 2018-08-17 | 2020-08-14 | 国网江苏省电力有限公司电力科学研究院 | Air conditioner electric monitoring system and method based on double-loop intelligent electric energy meter |
| CN109239521A (en) * | 2018-09-05 | 2019-01-18 | 格力电器（武汉）有限公司 | Wiring detection method and device |
| CN112798983A (en) * | 2020-12-30 | 2021-05-14 | 珠海格力电器股份有限公司 | Method and device for detecting connecting line of internal and external machines |
| CN112798983B (en) * | 2020-12-30 | 2022-03-01 | 珠海格力电器股份有限公司 | Method and device for detecting connecting line of internal and external machines |
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