CN102278800B - Automatic fault clearing method for outdoor unit of variable-frequency air conditioner - Google Patents
Automatic fault clearing method for outdoor unit of variable-frequency air conditioner Download PDFInfo
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- CN102278800B CN102278800B CN201010195106.3A CN201010195106A CN102278800B CN 102278800 B CN102278800 B CN 102278800B CN 201010195106 A CN201010195106 A CN 201010195106A CN 102278800 B CN102278800 B CN 102278800B
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Abstract
The invention discloses an automatic fault clearing method for an outdoor unit of a variable-frequency air conditioner. The method comprises the following steps: the temperature of an exhaust opening, an outdoor heat exchanger or a radiator surpasses respective set upper limit value in the running process of the variable-frequency air conditioner; the rotating speed of a variable-frequency compressor and/or a fixed-speed compressor decreases to the minimum extent; an outdoor fan rotates reversely by certain seconds and recovers normal running; and when the temperature of the exhaust opening surpasses the set upper limit value for five times within an hour, the variable-frequency compressor and/or the fixed-speed compressor stops running. In the automatic fault clearing method for the outdoor unit of the variable-frequency air conditioner, the problem of temperature abnormity of the exhaust opening, the outdoor heat exchanger or the radiator caused by the foreign matters attached to the outdoor heat exchanger and an air inlet is solved by making the outdoor fan rotate reversely within a short period of time, so that faults caused by external factors can be cleared effectively, and the protective measures of the air conditioner are more perfect. Moreover, maintenance personnel can quickly find causes of faults with the method, so that the maintenance amount and time can be reduced.
Description
Technical field
The present invention relates to a kind of automatic troubleshooting method of air-conditioner, particularly relate to a kind of automatic fault clearing method for outdoor unit of variable-frequency air conditioner.
Background technology
Usually, air-conditioner a kind ofly makes the refrigeration that the refrigerant of its inside carries out being made up of compression process, condensation process, expansion process and evaporation process or the device heating circulation.When air-conditioner carries out kind of refrigeration cycle, the refrigerant first inflow outdoor heat exchanger of high-temperature high-pressure state is become through compressor compression, in outdoor heat converter, this refrigerant will externally dispel the heat, then expansion valve is flowed to, and significantly reducing its temperature and pressure when flowing through expansion valve, this low temperature, low pressure refrigerant are by inflow indoor heat exchanger subsequently.In indoor heat converter, this refrigerant is by absorbing the heat of surrounding air, finally again flows back in compressor, so repeatedly circulates.Heat circulation then contrary with above-mentioned refrigerative circle system.Described compression process, condensation process and expansion process are carried out in the off-premises station of air-conditioner, and evaporation process is then carry out in indoor set.In addition, indoor heat converter is mounted in indoor and has refrigeration or heat the device of effect, and when kind of refrigeration cycle, it has the effect of evaporimeter, is heating circulation time and then have the effect of condenser.Outdoor heat converter has the effect of condenser when kind of refrigeration cycle, heating circulation time and then have the effect of evaporimeter.Divide according to the structure of compressor, air-conditioner is usually divided into the common air-conditioning device of simple employing constant speed compressor and adopts the transducer air conditioning of constant speed compressor and frequency-changeable compressor simultaneously.Fig. 1 is the frequency-change air conditioner outdoor machine part-structure exploded perspective view of prior art.Fig. 2 is the frequency-change air conditioner outdoor machine internal part bonding state stereogram shown in Fig. 1.Fig. 3 is the frequency-change air conditioner outdoor machine part-structure side direction exploded perspective view shown in Fig. 1.As shown in Figure 1-Figure 3, the frequency-change air conditioner outdoor machine of this prior art mainly comprises: the housing 3 being made up of off-premises station end face and four lateral outer structures not shown top panel and front panel, backplate 1 and two side panels 2, wherein backplate 1 and Left-Hand Panel 2 are formed with air inlet 10, front panel is then formed with exhaust outlet; Be arranged on the bottom of housing 3 and it can be installed the chassis 4 of each parts of off-premises station; Be arranged on the side, top on chassis 4, low-temp low-pressure gaseous coolant can be compressed into frequency-changeable compressor and the constant speed compressor 5 of high pressure gaseous refrigerant; Be vertically set on opposite side and the rear side on chassis 4, lateral cross section is L-shaped, and the refrigerant of flowing in it and its surrounding air can be made to carry out the outdoor heat converter 6 of heat exchange; Be arranged on be positioned at centre, chassis 4 electric machine support 7 on, for generation of the motor 8 of rotary power; Be connected with the output shaft of motor 8, by the mode rotated extraneous air is drawn into the inside of housing 3 from the air inlet 10 backplate 1 and Left-Hand Panel 2, the outdoor fan 9 of simultaneously will discharge from the exhaust outlet front panel through the air of heat exchange with outdoor heat converter 6; Be vertically set on the baffle plate 11 between frequency-changeable compressor and constant speed compressor 5 and condenser 6 and outdoor fan 9, motor 8; With the top being arranged on baffle plate 11, be provided with for controlling the control box 12 of the controller that off-premises station runs and being arranged on the bottom of control box 12, for the protection of controller in case the controller assemblies 14 of its overheated radiator 13 composition by inside.When the transducer air conditioning of this prior art switches on power and carries out kind of refrigeration cycle, the motor 8 being positioned at off-premises station inside rotates starting, thus drive outdoor fan 9 to rotate together, thus the Cryogenic air of outside is drawn into the inside of off-premises station by the air inlet 10 on backplate 1 and Left-Hand Panel 2.Meanwhile, frequency-changeable compressor and/or constant speed compressor 5 will start compression refrigerant, then the refrigerant through overcompression will be supplied to outdoor heat converter 6 by refrigerant pipe.Outdoor air with above-mentioned suction is carried out heat exchange and externally space heat elimination by the refrigerant through overcompression while flowing through outdoor heat converter 6, through heat exchange outdoor air finally from the exhaust outlet front panel discharged to the exterior space, the refrigerant through heat exchange then flows to indoor set by refrigerant pipe.But because this off-premises station is usually disposed in the outdoor, along with the prolongation of service time, by the impact of inside and outside portion factor, it likely breaks down.The temperature of the present exhaust outlet of some bug list, outdoor heat converter 6 or radiator 13 is too high, wherein exhaust outlet, outdoor heat converter 6 temperature is too high is caused by following factors:
1) in system, coolant quantity is not enough;
2) outdoor temperature is abnormal;
3) outdoor heat converter 6 surface attachment has foreign matter, thus causes heat exchange area to reduce;
4) air inlet 10 place is stifled foreign matter, thus causes intake to reduce.
Radiator 13 temperature is too high, is caused by following factors:
1) in system, electric current is excessive, thus causes controller producing too much heat;
2) heat dispersion of radiator 13 is bad, because the heat radiation of radiator 13 is mainly undertaken by the running of outdoor fan 9, if air inlet 10 place is stifled foreign matter, radiator 13 will be caused to occur, and heat radiation is bad.
In these cases, this transducer air conditioning will start automatic debugger under the control of the controller.Fig. 4 is the automatic fault clearing method for outdoor unit of variable-frequency air conditioner flow chart of this prior art.As shown in Figure 4, the automatic fault clearing method for outdoor unit of variable-frequency air conditioner of this prior art comprises the following step carried out in order:
1) in transducer air conditioning operation process, in exhaust outlet, outdoor heat converter 6 or radiator 13, some temperature exceed the S1 stage of its capping value;
2) the slow-revving S2 stage falls in frequency-changeable compressor and/or constant speed compressor 5;
3) when the temperature of exhaust outlet is down to below capping value, frequency-changeable compressor and/or constant speed compressor 5 recover the S3 stage run well;
4) when exhaust outlet temperature to accumulate within an hour exceed its capping value for 5 times time, the S4 stage that frequency-changeable compressor and/or constant speed compressor 5 shut down.
But, there is following point in the automatic fault clearing method for outdoor unit of variable-frequency air conditioner of this prior art: this method can only avoid the random failure of a part of internal system, but the fault that some are caused by external factor cannot be got rid of, therefore can not provide more, better safeguard procedures to transducer air conditioning.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide the automatic fault clearing method for outdoor unit of variable-frequency air conditioner that a kind of safeguard procedures are more perfect.
In order to achieve the above object, the frequency-change air conditioner outdoor machine used in automatic fault clearing method for outdoor unit of variable-frequency air conditioner provided by the invention comprises the housing be made up of top panel and front panel, backplate and two side panels, wherein backplate and Left-Hand Panel are formed with air inlet, front panel is then formed with exhaust outlet; Be arranged on the chassis of lower housing portion; Be arranged on the controller assemblies that frequency-changeable compressor on chassis and constant speed compressor, outdoor heat converter, motor, outdoor fan, baffle plate and the control box being provided with controller by inside and the radiator that is arranged on control box bottom form; Described automatic fault clearing method for outdoor unit of variable-frequency air conditioner comprises the following step carried out in order:
1) in transducer air conditioning operation process, in exhaust outlet, outdoor heat converter or radiator, some temperature exceed the S10 stage of its capping value;
2) rotating speed of frequency-changeable compressor and/or constant speed compressor is down to the minimum S20 stage;
3) outdoor fan recovers the S30 stage of normal operation after reversely rotating the several seconds;
4) when exhaust outlet temperature to accumulate within an hour exceed its capping value for 5 times time, the S40 stage that frequency-changeable compressor and/or constant speed compressor shut down.
2, frequency-change air conditioner outdoor machine according to claim 1, is characterized in that: described step 3) in time of outdoor fan antiport be 20 seconds.
3, frequency-change air conditioner outdoor machine according to claim 1, is characterized in that: when the model of described transducer air conditioning is different, step 1) and step 4) the temperature capping value of middle exhaust outlet, outdoor heat converter or radiator is different.
Automatic fault clearing method for outdoor unit of variable-frequency air conditioner provided by the invention is that the mode utilizing the outdoor fan short time to reversely rotate solves the foreign matter because being attached on outdoor heat converter and air inlet and the exhaust outlet, outdoor heat converter or the radiator temperature abnormal problem that cause, can not only effectively get rid of the fault caused by these external factors like this, and the safeguard procedures of air-conditioner can be made more perfect.In addition, this method is also convenient to the reason that maintenance personal finds rapidly fault, thus can significantly reduce maintenance capacity and maintenance time.
Accompanying drawing explanation
Fig. 1 is the frequency-change air conditioner outdoor machine part-structure exploded perspective view of prior art.
Fig. 2 is the frequency-change air conditioner outdoor machine internal part bonding state stereogram shown in Fig. 1.
Fig. 3 is the frequency-change air conditioner outdoor machine part-structure side direction exploded perspective view shown in Fig. 1.
Fig. 4 is the automatic fault clearing method for outdoor unit of variable-frequency air conditioner flow chart of this prior art.
Fig. 5 is automatic fault clearing method for outdoor unit of variable-frequency air conditioner flow chart provided by the invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, automatic fault clearing method for outdoor unit of variable-frequency air conditioner provided by the invention is described in detail.The parts identical with prior art adopt identical drawing reference numeral, and omit the explanation carried out it.
As shown in Figure 1-Figure 3, the frequency-change air conditioner outdoor machine that automatic fault clearing method for outdoor unit of variable-frequency air conditioner provided by the invention uses comprises: the housing 3 being made up of off-premises station end face and four lateral outer structures not shown top panel and front panel, backplate 1 and two side panels 2, wherein backplate 1 and Left-Hand Panel 2 are formed with air inlet 10, front panel is then formed with exhaust outlet; Be arranged on the bottom of housing 3 and it can be installed the chassis 4 of each parts of off-premises station; Be arranged on the side, top on chassis 4, low-temp low-pressure gaseous coolant can be compressed into frequency-changeable compressor and the constant speed compressor 5 of high pressure gaseous refrigerant; Be vertically set on opposite side and the rear side on chassis 4, lateral cross section is L-shaped, and the refrigerant of flowing in it and its surrounding air can be made to carry out the outdoor heat converter 6 of heat exchange; Be arranged on be positioned at centre, chassis 4 electric machine support 7 on, for generation of the motor 8 of rotary power; Be connected with the output shaft of motor 8, by the mode rotated extraneous air is drawn into the inside of housing 3 from the air inlet 10 backplate 1 and Left-Hand Panel 2, the outdoor fan 9 of simultaneously will discharge from the exhaust outlet front panel through the air of heat exchange with outdoor heat converter 6; Be vertically set on the baffle plate 11 between frequency-changeable compressor and constant speed compressor 5 and condenser 6 and outdoor fan 9, motor 8; With the top being arranged on baffle plate 11, be provided with for controlling the control box 12 of the controller that off-premises station runs and being arranged on the bottom of control box 12, for the protection of controller in case the controller assemblies 14 of its overheated radiator 13 composition by inside.
As shown in Figure 5, automatic fault clearing method for outdoor unit of variable-frequency air conditioner provided by the invention comprises the following step carried out in order:
1) in transducer air conditioning operation process, in exhaust outlet, outdoor heat converter 6 or radiator 13, some temperature exceed the S10 stage of its capping value;
2) rotating speed of frequency-changeable compressor and/or constant speed compressor 5 is down to the minimum S20 stage;
3) outdoor fan 9 recovers the S30 stage of normal operation after reversely rotating the several seconds;
4) when exhaust outlet temperature to accumulate within an hour exceed its capping value for 5 times time, the S40 stage that frequency-changeable compressor and/or constant speed compressor 5 shut down.
Described step 3) in time of outdoor fan 9 antiport be 20 seconds.
When the model of described transducer air conditioning is different, step 1) and step 4) the temperature capping value of middle exhaust outlet, outdoor heat converter 6 or radiator 13 is different.
In the automatic fault clearing method for outdoor unit of variable-frequency air conditioner that the invention described above provides, step 1) in the temperature capping value of exhaust outlet, outdoor heat converter 6 or radiator 13 be preset on the controller according to the factor such as environment for use, self structure of transducer air conditioning by designer, and the temperature at these positions normally utilizes the temperature sensor being arranged on this place to detect.Step 2) in be down to minimum by the rotating speed of frequency-changeable compressor and/or constant speed compressor 5 be to prevent step 3) in outdoor fan 9 make each temperature in system rise to shutoff temperature when reversing, thus affect the operation of whole transducer air conditioning.Step 3) be remove by the reverse rotation of outdoor fan 9 foreign matter be attached on outdoor heat converter 6 and air inlet 10, namely get rid of the fault caused by external factor.In addition, the reverse rotation of outdoor fan 9 utilizes controller to control motor 8 to rotate backward, thus drive outdoor fan 9 together to rotate and realize.After above-mentioned process, if still there is step 4) in situation, show that the fault of transducer air conditioning comes from inside, so stop it running immediately, with the whole device of anti-tamper.
Claims (3)
1. an automatic fault clearing method for outdoor unit of variable-frequency air conditioner, wherein frequency-change air conditioner outdoor machine comprises the housing (3) be made up of top panel and front panel, backplate (1) and two side panels (2), wherein backplate (1) and Left-Hand Panel (2) are formed with air inlet (10), front panel is then formed with exhaust outlet; Be arranged on the chassis (4) of housing (3) bottom; Be arranged on the controller assemblies (14) that frequency-changeable compressor on chassis (4) and constant speed compressor (5), outdoor heat converter (6), motor (8), outdoor fan (9), baffle plate (11) and the control box (12) being provided with controller by inside and the radiator (13) that is arranged on control box (12) bottom form; It is characterized in that: described automatic fault clearing method for outdoor unit of variable-frequency air conditioner comprises the following step carried out in order:
1) in transducer air conditioning operation process, in exhaust outlet, outdoor heat converter (6) or radiator (13), some temperature exceed the S10 stage of its capping value;
2) rotating speed of frequency-changeable compressor and/or constant speed compressor (5) is down to the minimum S20 stage;
3) outdoor fan (9) recovers the S30 stage of normal operation after reversely rotating the several seconds;
4) when exhaust outlet temperature to accumulate within an hour exceed its capping value for 5 times time, the S40 stage that frequency-changeable compressor and/or constant speed compressor (5) shut down.
2. automatic fault clearing method for outdoor unit of variable-frequency air conditioner according to claim 1, is characterized in that: described step 3) in time of outdoor fan (9) antiport be 20 seconds.
3. automatic fault clearing method for outdoor unit of variable-frequency air conditioner according to claim 1, it is characterized in that: when the model of described transducer air conditioning is different, step 1) and step 4) the temperature capping value of middle exhaust outlet, outdoor heat converter (6) or radiator (13) is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010195106.3A CN102278800B (en) | 2010-06-09 | 2010-06-09 | Automatic fault clearing method for outdoor unit of variable-frequency air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010195106.3A CN102278800B (en) | 2010-06-09 | 2010-06-09 | Automatic fault clearing method for outdoor unit of variable-frequency air conditioner |
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| Publication Number | Publication Date |
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| CN102278800A CN102278800A (en) | 2011-12-14 |
| CN102278800B true CN102278800B (en) | 2014-12-24 |
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| CN201010195106.3A Expired - Fee Related CN102278800B (en) | 2010-06-09 | 2010-06-09 | Automatic fault clearing method for outdoor unit of variable-frequency air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3757472A1 (en) * | 2019-06-26 | 2020-12-30 | Hitachi-Johnson Controls Air Conditioning, Inc. | Air-conditioner |
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| CN104976732B (en) * | 2014-04-10 | 2017-09-22 | 珠海格力电器股份有限公司 | Control method and control system of multi-connected outdoor unit |
| CN105805901A (en) * | 2016-05-13 | 2016-07-27 | 广东美的制冷设备有限公司 | Operation control method and device for air conditioner |
| CN106871378B (en) * | 2017-03-29 | 2019-12-20 | 广东美的暖通设备有限公司 | Method and device for judging poor heat exchange of air conditioner |
| CN109611989B (en) * | 2018-12-12 | 2021-02-05 | 广东智科电子股份有限公司 | Device and method for synchronously adjusting temperature of cold and hot water machine and frequency of press |
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| CN102278800A (en) | 2011-12-14 |
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