CN110195915B - Fault detection device based on air conditioner maintenance - Google Patents
Fault detection device based on air conditioner maintenance Download PDFInfo
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- CN110195915B CN110195915B CN201910376513.5A CN201910376513A CN110195915B CN 110195915 B CN110195915 B CN 110195915B CN 201910376513 A CN201910376513 A CN 201910376513A CN 110195915 B CN110195915 B CN 110195915B
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- 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
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- 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
- F24F11/39—Monitoring filter performance
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- 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
- F24F11/52—Indication arrangements, e.g. displays
- F24F11/523—Indication arrangements, e.g. displays for displaying temperature data
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- 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
- F24F11/52—Indication arrangements, e.g. displays
- F24F11/526—Indication arrangements, e.g. displays giving audible indications
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- 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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- 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
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- 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
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
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- 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
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a fault detection device based on air conditioner maintenance, which comprises an outdoor coil, wherein the input side of the outdoor coil is connected with the output side of an oil-liquid separator, and a coil temperature sensing piece is connected to the outdoor coil; an outdoor fan; the outdoor temperature sensing piece is used for detecting the outdoor temperature; the controller is used for recording the parameter values respectively detected by the coil temperature sensing piece and the outdoor temperature sensing piece, calculating the difference value of the parameter values and the outdoor temperature sensing piece, and comparing the difference value with the fault parameter values recorded in the database; the alarm is used for giving an alarm when the difference value is greater than or equal to the fault parameter value and the duration of the difference value is greater than the duration of the fault time recorded in the database; a display for displaying fault information; the invention can directly analyze the fault condition of the motor by adopting the difference between the outdoor coil and the outdoor environment temperature, and convert the fault of the outdoor fan into the visible mode of the alarm and the display, thereby reducing the after-sale maintenance time and improving the maintenance efficiency.
Description
Technical Field
The invention belongs to the technical field of air conditioner fault detection, and particularly relates to a fault detection device based on air conditioner maintenance.
Background
The existing household air conditioner mainly comprises: the compressor, the condenser, the throttling device, the evaporator and the like, wherein the compressor and the condenser are positioned in the outdoor unit. For an air-cooled type household air conditioner, an outdoor condenser of the air conditioner usually provides kinetic energy for cooling air by an outdoor fan; since the outdoor fan is installed outdoors and driven by ac power, it is generally difficult to detect when the outdoor fan malfunctions. Maintenance personnel need to determine the fault reason after the air conditioner is started, and after the fault reason is determined, the maintenance personnel can maintain the air conditioner by returning to relevant accessories of the outdoor fan in the field, the time consumption of the whole maintenance process is extremely long, and the working efficiency is low.
Disclosure of Invention
The invention provides a fault detection device based on air conditioner maintenance, which can be embodied after an outdoor fan fails in order to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a fault detection device based on air conditioner maintenance comprises
The low-pressure side of the compressor is connected with the second pressure detection piece;
the oil-liquid separator is connected with the high-pressure side of the compressor;
the gas-liquid separator is connected with the low-pressure side of the compressor;
the input side of the outdoor coil is connected with the output side of the oil-liquid separator, and the outdoor coil is connected with a coil temperature sensing piece;
an outdoor fan;
the throttling device is used for throttling the refrigerant flowing through the main path;
the indoor unit is arranged between the outdoor coil pipe and the throttling device;
the outdoor temperature sensing piece is used for detecting the outdoor temperature;
the controller is used for recording the parameter values respectively detected by the coil temperature sensing piece and the outdoor temperature sensing piece, calculating the difference value of the parameter values and the outdoor temperature sensing piece, and comparing the difference value with the fault parameter values recorded in the database;
the alarm is used for giving an alarm when the difference value is greater than or equal to the fault parameter value and the duration of the difference value is greater than the duration of the fault time recorded in the database;
and the display is used for displaying the fault information.
When the outdoor fan breaks down, the temperature of the outdoor coil pipe can rise rapidly after the air conditioner is started for a period of time, so that the difference value of the parameter values respectively detected by the coil pipe temperature sensing piece and the outdoor temperature sensing piece can be increased rapidly and far exceeds the fault parameter value recorded in the database, the alarm can give an alarm, the fault information is displayed on the display, a user is informed that the outdoor fan breaks down, the fault reason can be directly informed to after-sales personnel, the after-sales maintenance time is shortened to a great extent, and the maintenance efficiency is improved.
The fault parameter value is 25-35 ℃, and the fault time duration value is 8-16 s.
The fault parameter value is 30 ℃, and the fault time duration value is 12 s; avoid the damage of the outdoor coil pipe due to overheating.
The second pressure detection piece is electrically connected with the controller, and when the controller receives that the detection value of the first pressure detection piece is lower than the fault pressure value recorded in the database, the display displays that the high-pressure side of the compressor is blocked.
The indoor unit comprises a case, a mixing chamber, a filtering chamber, a humidifying chamber, a temperature-adjusting heating chamber and an air outlet section, wherein the mixing chamber, the filtering chamber, the humidifying chamber, the temperature-adjusting heating chamber and the air outlet section are formed in the case; humidification chamber is located the filter chamber and adjusts the temperature between the heating chamber, a wind pressure response piece is connected to the filter chamber, an air-out temperature detection piece is connected to the air-out section, this wind pressure response piece with air-out temperature detection piece with the controller electricity links.
When the controller receives that the pressure value detected by the wind pressure sensing piece is lower than the wind pressure value recorded in the database, the alarm gives an alarm, and the display shows that the filter piece is blocked.
When the difference value of the parameter values respectively detected by the air outlet temperature detection piece and the outdoor temperature sensing piece obtained by calculation of the controller is higher than the air outlet temperature difference value recorded in the database, the display displays that the heating section has a fault.
The outdoor coil pipe comprises a shell, a coil pipe arranged on the shell and a cleaning piece capable of moving back and forth relative to the coil pipe, wherein the cleaning piece comprises a support and brush strips uniformly arranged on the support at intervals in the length direction; the fault detection device comprises a driving device which can drive the bracket to move back and forth; when the temperature of the coil is too high, possible failure conditions are: 1. failure of an outdoor fan of an air conditioner; 2. dirty blockage occurs on the air outlet side of the condenser; 3. the outer surface of the heat exchange tube is dirty and blocked; when the situation is that dirt is blocked on the outer surface of the heat exchange tube, the driving device drives the support to move back and forth to drive the brush strip to move back and forth relative to the coil tube, so that dirt adhered to the outer surface of the coil tube is scraped off; and preferably, the brush bar reciprocating process can control the fan to rotate reversely, so that the scraped dirt can quickly leave the coil pipe, and the dirt is effectively prevented from entering the fan, and the failure rate of the fan is reduced.
The driving device comprises two screw rods, a driving motor, a gear piece arranged on an output shaft of the driving motor, a transmission gear meshed with the gear piece and a transmission part used for realizing the transmission connection of the screw rods and the transmission gear, wherein the transmission part comprises a first gear and a second gear, the second gear is fixedly arranged at the end part of the screw rods, one side of the first gear is meshed with the transmission gear, and the other side of the first gear is meshed with the second gear; the bracket is provided with threaded holes for the two screw rods to pass through respectively, and the shell is provided with openings for the two screw rods to pass through respectively; therefore, the screw rod can be inserted into the support when the blockage is required to be cleared, so that the driving device can be carried by maintenance personnel, a driving device is not required to be arranged on each coil pipe, and the investment cost of equipment is low.
The screw rod comprises a plurality of rod bodies and a connecting part for realizing detachable connection between two adjacent rod bodies, the connecting part comprises two elastic sheets, a clamping part arranged at the end part of each elastic sheet, an inserting groove and an open groove arranged in the inserting groove and used for the clamping part to pass through, the two elastic sheets are arranged on one of the rod bodies, and the inserting groove is arranged on the other rod body; with the structure, the screw rod can be disassembled into a plurality of rod bodies, so that when maintenance personnel carry with the screw rod or carry the screw rod with a vehicle, the driving device occupies a smaller space and is convenient to carry; the connection is realized by clamping the clamping part with the open slot, so that the rod bodies are prevented from being loosened in the forward and reverse rotation processes of the screw rod; and the surface of card portion can set up to be with body of rod surface parallel and level, so a plurality of body of rod connection backs, the lead screw surface can not have too bellied part, guarantees support round trip movement's smooth and easy nature.
The invention can directly analyze the fault condition of the motor by adopting the difference between the outdoor coil and the outdoor environment temperature, and converts the fault of the outdoor fan into the visible mode of the alarm and the display, thereby greatly reducing the after-sale maintenance time and improving the maintenance efficiency.
Drawings
Fig. 1 is a first structural schematic diagram of the present invention.
Fig. 2 is a second structural schematic diagram of the present invention.
Fig. 3 is a schematic structural view of the indoor unit of the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Fig. 5 is a schematic diagram of the coil and fan of the present invention.
FIG. 6 is a schematic view of the driving device and the cleaning member of the present invention.
Fig. 7 is a schematic view of the driving device and the coil pipe of the present invention.
Fig. 8 is a front view of fig. 7.
Fig. 9 is a cross-sectional view taken along line a-a of fig. 8.
Fig. 10 is a schematic structural view of a screw rod according to the present invention.
Detailed Description
As shown in fig. 1 to 10, a fault detection device based on air conditioner maintenance comprises a compressor 1, a low pressure side is connected with a second pressure detection part 12; the oil-liquid separator 2 is connected with the high-pressure side of the compressor 1; a gas-liquid separator 3 connected to the low-pressure side of the compressor; an input side of the outdoor coil 4 is connected with an output side of the oil-liquid separator 2, and the outdoor coil 4 is connected with a coil temperature sensing piece 41; an outdoor fan 5; the throttling device 6 is used for throttling the refrigerant flowing through the main path; the indoor unit 7 is arranged between the outdoor coil pipe 4 and the throttling device 6; an outdoor temperature sensing member 30 for detecting an outdoor temperature; the controller 20 is used for recording the parameter values respectively detected by the coil temperature sensing piece and the outdoor temperature sensing piece, calculating the difference value of the parameter values and the outdoor temperature sensing piece, and comparing the difference value with the fault parameter values recorded in the database; an alarm 10 for giving an alarm when the difference is greater than or equal to the failure parameter value and the duration of the difference is greater than the duration of the failure time recorded in the database; a display 11 for displaying fault information; wherein, the second pressure detecting element 12 is a pressure sensor directly purchased from the market, and the coil temperature sensing element 41 and the outdoor temperature sensing element 30 are temperature sensors purchased from the market; the controller is a PLC controller or a single chip microcomputer; the alarm and the display can be purchased directly, and the structure is not repeated.
Specifically, the fault parameter value is 25-35 ℃, and the fault time duration value is 8-16 s; preferably, the fault parameter value is 30 ℃, and the fault time duration value is 12 s; the second pressure detection part 12 is electrically connected with the controller, and when the controller receives that the detection value of the second pressure detection part 12 is lower than the fault pressure value recorded in the database, the display 11 displays that the high-pressure side of the compressor is blocked; the indoor unit 7 comprises a case 71, a mixing chamber 72 formed in the case, a filtering chamber 73, a humidifying chamber 74, a temperature-adjusting heating chamber 75 and an air outlet section 76; the humidifying chamber 74 is located between the filtering chamber 73 and the temperature-adjusting heating chamber 75, the filtering chamber 73 is connected with a wind pressure sensor 731, the wind outlet section 76 is connected with a wind outlet temperature detector 761, and the wind pressure sensor 731 and the wind outlet temperature detector 761 are electrically connected with the controller; when the controller 20 receives that the pressure value detected by the wind pressure sensing piece 731 is lower than the wind pressure value recorded in the database, the alarm gives an alarm, and the display 11 displays that the filter is blocked; when the difference between the values of the parameters detected by the outlet air temperature detecting part 761 and the outdoor temperature sensing part 30, which are calculated by the controller 20, is higher than the outlet air temperature difference recorded in the database, the display 11 displays that the heating section has a fault; the wind pressure sensor 731 is a micro-pressure sensor directly purchased from the market, and the outlet air temperature detector 761 is a temperature sensor directly purchased from the market.
Specifically, the temperature detected by the coil temperature sensing element is a T disc, the temperature detected by the outdoor temperature sensing element is outside T, when the temperature outside the T disc-T is more than or equal to 30 ℃, and the difference value is maintained to 12s, the controller judges that the outdoor fan of the air conditioner fails or the air outlet side of the condenser is dirty and blocked or the outer surface of the heat exchange tube is dirty and blocked, and displays the temperature on the display screen in a code form to inform a user or after-sales personnel.
Further, the outdoor coil 4 comprises a shell 42, a coil 44 arranged on the shell and a cleaning piece 43 capable of moving back and forth relative to the coil, the coil is composed of a plurality of heat exchange tubes, the cleaning piece 43 comprises a support 431 and brush strips 432 uniformly arranged on the support along the length direction at intervals, a brush strip is arranged between two adjacent heat exchange tubes, and brush bristles are arranged on the upper part and the lower part of the brush strip; the fault detection device comprises a driving device capable of driving the support 431 to move back and forth, and specifically, the driving device comprises two screw rods 81, a driving motor 82, a gear piece 83 arranged on an output shaft of the driving motor, a transmission gear 84 meshed with the gear piece, and a transmission part for realizing transmission connection of the screw rods and the transmission gear, wherein the transmission part comprises a first gear 85 and a second gear 86, the second gear is fixedly arranged at the end part of the screw rods 81, one side of the first gear is meshed with the transmission gear, and the other side of the first gear is meshed with the second gear; the driving device further comprises a housing 87 and a supporting seat 88, the supporting seat 88 is fixedly arranged on the housing 87, the driving motor 82 is arranged on the supporting seat 88, the gear piece, the transmission gear and the transmission part are all gears directly purchased from the market, and the gears are all arranged in the housing 87; the cover 87 is provided with four L-shaped fixing feet 871, the shell is provided with four positioning seats 422 matched with the fixing feet, the positioning seats are provided with sockets 423, and the four fixing feet 871 can be respectively inserted into the sockets on the four positioning seats 422, so that the position of the cover is fixed.
Threaded holes for the two screw rods 81 to pass through are formed in the bracket 431, and holes for the two screw rods 81 to pass through are formed in the shell 42; the driving motor is a motor directly purchased from the market, when the motor rotates forwards, the bracket moves from the left side to the right side of the shell, and when the motor rotates backwards, the bracket moves from the right side to the left side of the shell; preferably, the upper portion and the lower portion of the support 413 are respectively provided with a guide block 9, the surface of the guide block 9 is provided with a curved surface structure, the inner wall of the shell 42 is provided with a guide groove matched with the guide block, the upper end of the guide block penetrates into the guide groove, so that the displacement of the support is guided and limited, the friction between the guide block and the guide groove is reduced due to the curved surface structure, and the support moves more smoothly.
Preferably, the screw 81 includes a plurality of rod bodies 811 and a connecting member for detachably connecting two adjacent rod bodies, the connecting member includes two elastic pieces 812, a locking portion 813 provided at an end of the elastic piece, an insertion groove, and an open groove 815 provided in the insertion groove for the locking portion to pass through, the two elastic pieces 812 are provided on one of the rod bodies, and the insertion groove is provided on the other rod body; when the two rod bodies are connected, the two elastic pieces are inserted into the insertion groove, and the clamping part penetrates into the open groove to realize the connection of the two rod bodies; when the rod bodies need to be disassembled, the clamping parts are pressed inwards by means of tools, so that the two rod bodies can be pulled out mutually.
The filtering chamber 73 is provided with a first filtering slot 732 and a second filtering slot 733, the first filtering slot is provided with a filtering member 734, the second filtering slot is provided with a plug member 735, and the filtering member and the plug member are respectively fixedly connected with the filtering chamber 73 through a lock catch 736; when the filter element blockage is detected, the plug element 735 on the second filter slot can be taken down, a new filter element is inserted into the second filter slot, then the filter element in the first filter slot is taken out, and the plug element is plugged on the first filter slot; so that the indoor unit does not need to be closed in the process of replacing the filter element.
Claims (5)
1. The utility model provides a fault detection device based on air conditioner maintenance which characterized in that: comprises a compressor (1), a second pressure detection piece (12) is connected with the low-pressure side; the oil-liquid separator (2) is connected with the high-pressure side of the compressor (1); a gas-liquid separator (3) connected to the low-pressure side of the compressor; the input side of the outdoor coil (4) is connected with the output side of the oil-liquid separator (2), and the outdoor coil (4) is connected with a coil temperature sensing piece (41); an outdoor fan (5); the throttling device (6) is used for throttling the refrigerant flowing through the main path; the indoor unit (7) is arranged between the outdoor coil pipe (4) and the throttling device (6); an outdoor temperature sensing member (30) for detecting an outdoor temperature; the controller (20) is used for recording the parameter values respectively detected by the coil temperature sensing piece and the outdoor temperature sensing piece, calculating the difference value of the parameter values and the outdoor temperature sensing piece, and comparing the difference value with the fault parameter values recorded in the database; an alarm (10) for issuing an alarm when the difference is greater than or equal to the fault parameter value and the duration of the difference is greater than the duration of the fault time recorded in the database; the indoor unit (7) comprises a case (71), a mixing chamber (72), a filtering chamber (73), a humidifying chamber (74), a temperature-adjusting heating chamber (75) and an air outlet section (76), wherein the mixing chamber (72), the filtering chamber (73), the humidifying chamber (74), the temperature-adjusting heating chamber (75) and the air outlet section are formed in the case; the humidifying chamber (74) is positioned between the filtering chamber (73) and the temperature-adjusting heating chamber (75), the filtering chamber (73) is connected with a wind pressure sensing piece (731), the wind outlet section (76) is connected with a wind outlet temperature detecting piece (761), the wind pressure sensing piece (731) and the wind outlet temperature detecting piece (761) are electrically connected with the controller, when the controller (20) receives that the pressure value detected by the wind pressure sensing piece (731) is lower than the wind pressure value recorded in the database, the alarm gives an alarm, and the display (11) displays that the filtering piece is blocked;
the outdoor coil (4) comprises a shell (42), a coil (44) arranged on the shell and a cleaning piece (43) capable of moving back and forth relative to the coil, wherein the cleaning piece (43) comprises a bracket (431) and brush strips (432) uniformly arranged on the bracket at intervals along the length direction; a brush bar is arranged between the two heat exchange tubes which are adjacent up and down, and the upper surface and the lower surface of the brush bar are provided with brush hairs; the fault detection device comprises a driving device which can drive the bracket (431) to move back and forth; the driving device comprises two screw rods (81), a driving motor (82), a gear piece (83) arranged on an output shaft of the driving motor, a transmission gear (84) meshed with the gear piece, and a transmission part for realizing the transmission connection of the screw rods and the transmission gear, wherein the transmission part comprises a first gear (85) and a second gear (86), the second gear is fixedly arranged at the end part of the screw rods (81), one side of the first gear is meshed with the transmission gear, and the other side of the first gear is meshed with the second gear; threaded holes for the two screw rods (81) to penetrate through are formed in the support (431), and holes for the two screw rods (81) to penetrate through are formed in the shell (42); the screw rod (81) comprises a plurality of rod bodies (811) and a connecting part for realizing detachable connection between two adjacent rod bodies, the connecting part comprises two elastic pieces (812), a clamping part (813) arranged at the end part of each elastic piece, an inserting groove and an open groove (815) arranged in the inserting groove and used for the clamping part to pass through, the two elastic pieces (812) are arranged on one of the rod bodies, and the inserting groove is arranged on the other rod body; the driving device also comprises a housing (87) and a supporting seat (88), the supporting seat (88) is fixedly arranged on the housing (87), and the driving motor (82) is arranged on the supporting seat (88); the shell (87) is provided with four L-shaped fixing feet (871), the shell is provided with four positioning seats (422) matched with the fixing feet, the positioning seats are provided with inserting holes (423), and the four fixing feet (871) can be respectively inserted into the inserting holes on the four positioning seats (422), so that the position of the shell is fixed; when the motor rotates forwards, the support moves from the left side to the right side of the shell, and when the motor rotates backwards, the support moves from the right side to the left side of the shell.
2. The air conditioner maintenance-based fault detection device of claim 1, wherein: the fault parameter value is 25-35 ℃, and the fault time duration value is 8-16 s.
3. The air conditioner maintenance-based fault detection device of claim 2, wherein: the failure parameter value is 30 ℃, and the failure time duration value is 12 s.
4. The air conditioner maintenance-based fault detection device of claim 1, wherein: the second pressure detection piece (12) is electrically connected with the controller, and when the controller receives that the detection value of the second pressure detection piece (12) is lower than the fault pressure value recorded in the database, the display (11) displays that the high-pressure side of the compressor is blocked.
5. The air conditioner maintenance-based fault detection device of claim 1, wherein: when the difference value of the parameter values respectively detected by the air outlet temperature detection part (761) and the outdoor temperature sensing part (30) calculated by the controller (20) is higher than the air outlet temperature difference value recorded in the database, the display (11) displays that the heating section has a fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376513.5A CN110195915B (en) | 2019-05-03 | 2019-05-03 | Fault detection device based on air conditioner maintenance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376513.5A CN110195915B (en) | 2019-05-03 | 2019-05-03 | Fault detection device based on air conditioner maintenance |
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| CN110195915A CN110195915A (en) | 2019-09-03 |
| CN110195915B true CN110195915B (en) | 2020-08-21 |
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| CN201910376513.5A Active CN110195915B (en) | 2019-05-03 | 2019-05-03 | Fault detection device based on air conditioner maintenance |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110696593B (en) * | 2019-09-29 | 2021-09-21 | 珠海格力电器股份有限公司 | Automatic filth blockage detection method for automobile air conditioner filter, computer readable storage medium and air conditioner |
| CN110966722A (en) * | 2019-10-18 | 2020-04-07 | 长春工程学院 | BIM-based foreign matter detection method for heating, ventilating, air conditioning and refrigerating equipment |
| CN111006357A (en) * | 2019-12-13 | 2020-04-14 | 广东美的暖通设备有限公司 | Fan fault detection method and device, readable storage medium and air conditioner |
| CN111750503A (en) * | 2020-05-19 | 2020-10-09 | 海信（山东）空调有限公司 | Air conditioner and control method |
| CN111917606B (en) * | 2020-07-28 | 2022-08-05 | 青岛海尔科技有限公司 | Method and device for processing fault information, storage medium and electronic equipment |
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