CN109900390B - Rapid and accurate thermal bulb fault detection method and air conditioning unit - Google Patents
Rapid and accurate thermal bulb fault detection method and air conditioning unit Download PDFInfo
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- CN109900390B CN109900390B CN201910263303.5A CN201910263303A CN109900390B CN 109900390 B CN109900390 B CN 109900390B CN 201910263303 A CN201910263303 A CN 201910263303A CN 109900390 B CN109900390 B CN 109900390B
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Abstract
The invention discloses a rapid and accurate thermal bulb fault detection method and an air conditioning unit, wherein the thermal bulb fault detection method comprises the following steps: when the fault signal of the temperature sensing bulb occurs in the air conditioning unit, the spare temperature sensing device is connected with the spare temperature sensing port of the air conditioning unit to replace the temperature sensing bulb to be determined, whether the fault signal of the temperature sensing bulb is removed or not is judged, and if the fault signal of the temperature sensing bulb to be determined is removed, the temperature sensing bulb to be determined is in fault. The invention can realize accurate and quick judgment of whether the temperature-sensing bulb has a fault.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a quick and accurate thermal bulb fault detection method and an air conditioning unit.
Background
At present, most of air conditioning units detect temperature change according to temperature sensing bulbs during operation, and components such as compressors, fans, electronic expansion valves and the like of the units are adjusted, so that the units operate stably and efficiently. When the welding of temperature sensing package goes wrong or when factors such as the contact failure that becomes flexible after using for a long time and drops lead to the unit to appear temperature sensing package fault signal, current way mainly has two kinds: the first method is that failure shutdown is reported, maintenance personnel are waited to check the reason of the shutdown of the air conditioner, and the failed temperature sensing bulb is replaced after the temperature sensing bulb is determined to be failed, which has influence on the comfort level of users; the second method is to shield faults of the temperature sensing bulb, stop fault detection of the temperature sensing bulb, prevent the air conditioning unit from accurately receiving current temperature data, and cannot timely judge whether other faults exist in the unit, so that serious potential safety hazards exist. After the temperature sensing bulb fault signal appears in the unit, the two methods can not accurately judge whether the temperature sensing bulb has a fault in a short time, and the reliability of the detection result is low, so that the stable operation of the unit is not facilitated.
Therefore, how to design a rapid and accurate thermal bulb fault detection method and an air conditioning unit is an urgent technical problem to be solved in the industry.
Disclosure of Invention
In order to overcome the defect of low reliability of temperature sensing bulb fault judgment in the prior art, the invention provides a rapid and accurate temperature sensing bulb fault detection method and an air conditioning unit.
The invention adopts the technical scheme that a thermal bulb fault detection method is designed, and comprises the following steps: when the fault signal of the temperature sensing bulb occurs in the air conditioning unit, the spare temperature sensing device is connected with the spare temperature sensing port of the air conditioning unit to replace the temperature sensing bulb to be determined, whether the fault signal of the temperature sensing bulb is removed or not is judged, and if the fault signal of the temperature sensing bulb to be determined is removed, the temperature sensing bulb to be determined is in fault.
Preferably, whether the temperature-sensing bulb fault signal is removed or not is judged, and if not, the temperature-sensing bulb fault signal is not caused by the temperature-sensing bulb with the fault to be determined.
Preferably, after the spare temperature sensing device is connected with the spare temperature sensing port of the air conditioning unit to replace the temperature sensing bulb to be determined with a fault, the air conditioning unit is restarted, and then whether the fault signal of the temperature sensing bulb is removed is judged.
Preferably, the air conditioning unit is provided with at least two temperature sensing bulbs, and the temperature sensing bulb to which the fault signal of the temperature sensing bulb is directed is the temperature sensing bulb to be subjected to fault.
Preferably, each temperature sensing bulb is correspondingly provided with a spare temperature sensing port, and the spare temperature sensing device is connected to the spare temperature sensing port corresponding to the temperature sensing bulb to be determined with a fault.
Preferably, the standby temperature sensing port is provided with at least two different pin combinations, each temperature sensing bulb is correspondingly provided with one pin combination, and the standby temperature sensing device is connected to the pin combination corresponding to the temperature sensing bulb to be determined with the fault.
Preferably, the spare temperature sensing port is provided with a plurality of pins, and each pin combination comprises at least two pins.
Preferably, the spare temperature sensing port that adopts reserve temperature sensing package to connect air conditioning unit in order to replace the temperature sensing package of undetermined trouble includes: and connecting a terminal of the standby temperature sensing device with the standby temperature sensing port, mounting a temperature sensing part of the standby temperature sensing device at a position equivalent to the temperature sensing bulb to be subjected to fault detection, and feeding back the detection temperature of the standby temperature sensing device to the air conditioning unit instead of the detection temperature of the temperature sensing bulb to be subjected to fault detection.
Preferably, the spare temperature sensing port that adopts reserve temperature sensing package to connect air conditioning unit in order to replace the temperature sensing package of undetermined trouble includes: after the standby temperature sensing device is connected with the standby temperature sensing port, the air conditioning unit shields the temperature sensing bulb with the fault to be determined.
Preferably, the spare temperature sensing device is a bulb.
The invention also provides an air conditioning unit which adopts the temperature sensing bulb fault detection method.
Compared with the prior art, the invention has the following beneficial effects:
1. the standby temperature sensing port is connected with the standby temperature sensing device, if the fault is eliminated, the temperature sensing bulb to be determined to have the fault, and if the fault is not eliminated, the components except the temperature sensing bulb in the air conditioning unit work abnormally, so that the detection is quick and accurate, and the reliability is high;
2. when the fault of the temperature sensing bulb to be determined is determined, the temperature sensing bulb to be determined does not need to be shut down immediately, the wire is disconnected, and the fault temperature sensing bulb to be determined is replaced, the air conditioning unit can continue to normally operate by means of the standby temperature sensing device, and the comfort level of a user is guaranteed.
Drawings
The invention is described in detail below with reference to examples and figures, in which:
FIG. 1 is a schematic flow chart of an air conditioning unit with an exhaust bulb fault signal according to the present invention.
Detailed Description
The invention provides a thermal bulb fault detection method which is applicable to an air conditioning unit and comprises the following steps: when a temperature sensing bulb fault signal occurs in the air conditioning unit, a spare temperature sensing device is connected with a spare temperature sensing port of the air conditioning unit to replace a temperature sensing bulb to be determined, whether the temperature sensing bulb fault signal is removed or not is judged, if the temperature sensing bulb fault signal is removed, the temperature sensing bulb to be determined is in fault, if the temperature sensing bulb fault signal is not removed, the temperature sensing bulb fault signal is not caused by the temperature sensing bulb to be determined, but parts except the temperature sensing bulb to be determined in the air conditioning unit work abnormally, and further analysis, check and determination are needed. In the detection process, whether the temperature sensing package fault occurs can be quickly judged only by connecting the standby temperature sensing device and the standby temperature sensing port, the air conditioning unit can continue to normally operate by depending on the standby temperature sensing device, the wiring is not required to be immediately dismounted to be damaged, the temperature sensing package is not required to be replaced, and the use comfort of a user is not influenced.
Specifically, the process of replacing the temperature sensing bulb with the standby temperature sensing bulb to be determined is as follows, a terminal of the standby temperature sensing device is connected with the standby temperature sensing port, a temperature sensing part of the standby temperature sensing device is installed at a position equivalent to the temperature sensing bulb with the fault to be determined, the temperature sensing bulb with the fault to be determined is shielded by the air conditioning unit, and the detected temperature of the standby temperature sensing device replaces the detected temperature of the temperature sensing bulb with the fault to be determined and is fed back to the air conditioning unit.
Preferably, after the spare temperature sensing device is connected with the spare temperature sensing port of the air conditioning unit to replace the temperature sensing bulb with the fault to be determined, the air conditioning unit is restarted, and then whether the fault signal of the temperature sensing bulb is removed or not is judged. The restarting setting is that on one hand, the existing air conditioning unit is shut down for protection when a temperature bulb fault signal occurs in most cases, after the spare temperature sensing device is connected with the spare temperature sensing port, the air conditioning unit needs to be restarted to finish the judgment of whether the temperature bulb fault signal is removed, and on the other hand, the air conditioning unit can be restarted to improve the judgment accuracy of whether the temperature bulb fault is removed even if the air conditioning unit continues to operate when the temperature bulb fault signal occurs.
It should be noted that, the air conditioning unit generally has at least two temperature sensing bags, the temperature sensing bag to which the fault signal of the temperature sensing bag is directed is a temperature sensing bag to be determined, the standby temperature sensing device is preferably a temperature sensing bag, which may adopt various types of temperature sensing bags, such as a pin type temperature sensing bag, a plug-in type temperature sensing bag, a clip type temperature sensing bag, and the like, the standby temperature sensing port is installed on the main board before the air conditioning unit leaves the factory, the setting mode of the standby temperature sensing port is various, and two feasible solutions are provided below.
The first scheme is that each temperature sensing bulb is correspondingly provided with a spare temperature sensing port, the spare temperature sensing device is connected to the spare temperature sensing port corresponding to the temperature sensing bulb to be determined with faults, and corresponding marks can be made on each spare temperature sensing port so as to be convenient for operators to quickly identify and connect the spare temperature sensing device to the correct spare temperature sensing port.
The second scheme is that reserve temperature sensing port adopts many pin needle ports, reserve temperature sensing port is equipped with a plurality of pin needles, it can provide two kinds of pin needle combinations of at least difference, every kind of pin needle combination contains two at least pin needles, every temperature sensing package corresponds a pin needle combination of configuration, reserve temperature sensing device connects on the pin needle combination that pending trouble temperature sensing package corresponds, the replacement of a plurality of temperature sensing packages of reserve temperature sensing port adaptation through one, reserve temperature sensing port area of occupation is little, reduce the influence that other components and parts arranged on the mainboard of newly-increased reserve temperature sensing port.
As shown in fig. 1, for convenience of understanding, a 4pin port is taken as an example for detailed description, and the 4pin port can provide 6 pin combinations and can be suitable for replacing plug-in connection with 6 different temperature sensing bags. Assuming that a pin needle combination configured for the exhaust temperature sensing bulb is a 1pin needle and a 2pin needle, relevant replacing logics of the 1pin needle, the 2pin needle and the exhaust temperature sensing bulb are written in a mainboard, when an exhaust temperature sensing bulb fault signal occurs in the air conditioner unit, a terminal of a standby temperature sensing device is connected with the 1pin needle and the 2pin needle, then a temperature sensing part of the standby temperature sensing device is installed at an equivalent position of the exhaust temperature sensing bulb of the compressor, the air conditioner unit is tried again after the fault signal is completed, the original exhaust temperature sensing bulb is shielded, and the temperature detected by the pin needle combination replaces the detection temperature of the original exhaust temperature sensing bulb and is fed back to the air conditioner unit to operate. If the air conditioning unit does not have the exhaust temperature sensing bulb fault signal again and stably runs for a period of time, the explanation is that the exhaust temperature sensing bulb really causes the fault, at the moment, the air conditioning unit does not need to be immediately disassembled to break and change the wire to replace the exhaust temperature sensing bulb, and only needs to wait after a client does not need to use the air conditioning unit, the air conditioning unit feeds back to the after-sales overhaul unit to replace the exhaust temperature sensing bulb with the fault. If the fault signal of the exhaust temperature sensing bulb still appears after the air conditioner is started for a period of time, the fault signal indicates that the fault signal is not caused by the fault of the exhaust temperature sensing bulb, but the working of components except the exhaust temperature sensing bulb in the air conditioner unit is abnormal, and further analysis and investigation are needed.
Similarly, suppose that the pin needle combination of outer machine environment temperature sensing package configuration is 1pin needle and 3pin needle, write in the relevant replacement logic of 1pin needle, 3pin needle and outer machine environment temperature sensing package on the mainboard, when outer machine environment temperature sensing package fault signal appears in the air conditioner group, connect reserve temperature sensing device on 1pin needle and 3pin needle, try again to start the air conditioner group after accomplishing, then original outer machine environment temperature sensing package is shielded, replace the detection temperature feedback of original outer machine environment temperature sensing package with the temperature that this pin needle combination detected to the air conditioner group operation. After restarting, the judgment of the fault signal of the external machine environment temperature sensing bulb is the same as the judgment of the fault signal of the exhaust temperature sensing bulb, and details are not repeated here.
According to the invention, the standby temperature sensing port is additionally arranged on the air conditioning unit to replace different temperature sensing bags to be determined, so that whether the temperature sensing bag fault occurs is accurately detected, when the temperature sensing bag fault is determined, the air conditioning unit can continue to normally operate only by connecting the standby temperature sensing device to the standby temperature sensing port, the shutdown accident caused by the temperature sensing bag fault is rapidly solved, the shutdown maintenance is not needed, the operation is safe and reliable, and the convenience and comfort are brought to customers.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A method for detecting a fault of a temperature sensing bulb is characterized by comprising the following steps: when a temperature sensing bulb fault signal occurs in the air conditioning unit, a spare temperature sensing device is connected with a spare temperature sensing port of the air conditioning unit to replace a temperature sensing bulb to be determined, the air conditioning unit shields the temperature sensing bulb to be determined after the spare temperature sensing device is connected with the spare temperature sensing port, the detected temperature of the spare temperature sensing device replaces the detected temperature of the temperature sensing bulb to be determined and is fed back to the air conditioning unit, whether the temperature sensing bulb fault signal is removed or not is judged, and if the temperature sensing bulb to be determined is removed, the temperature sensing bulb to be determined is in fault;
the air conditioning unit is provided with at least two temperature sensing bulbs, and the temperature sensing bulb to which the fault signal of the temperature sensing bulb points is the temperature sensing bulb to be subjected to fault;
the standby temperature sensing port adopts a plurality of pin needle ports, the standby temperature sensing port is provided with a plurality of pin needles, at least two different pin needle combinations are provided, each temperature sensing bulb is correspondingly provided with one pin needle combination, each pin needle combination comprises at least two pin needles, and the standby temperature sensing device is connected to the pin needle combination corresponding to the temperature sensing bulb to be determined with faults.
2. The method according to claim 1, wherein it is determined whether the bulb fault signal is resolved, and if not, the bulb fault signal is not caused by the bulb to be diagnosed.
3. The method for detecting the fault of the temperature-sensing bulb as claimed in claim 1 or 2, characterized in that after a spare temperature sensing device is connected with a spare temperature sensing port of the air conditioning unit to replace the temperature-sensing bulb with a fault to be determined, the air conditioning unit is restarted, and then whether the fault signal of the temperature-sensing bulb is removed or not is judged.
4. The method for detecting the fault of the temperature sensing bulb as claimed in claim 1, wherein the step of connecting the spare temperature sensing bulb with the spare temperature sensing port of the air conditioning unit to replace the temperature sensing bulb with the fault to be detected comprises the following steps:
and connecting a terminal of the standby temperature sensing device with the standby temperature sensing port, and mounting a temperature sensing part of the standby temperature sensing device at a position equivalent to the temperature sensing bulb to be subjected to fault determination.
5. The method of claim 1, wherein the backup temperature sensing device is a bulb.
6. An air conditioning unit characterized by using the method for detecting a failure of a bulb according to any one of claims 1 to 5.
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| US6547454B2 (en) * | 2000-09-21 | 2003-04-15 | Corona Optical Systems, Inc. | Method to align optical components to a substrate and other optical components |
| JP4275511B2 (en) * | 2003-11-19 | 2009-06-10 | 三井化学株式会社 | Planar coil element manufacturing method |
| US7585176B2 (en) * | 2004-03-31 | 2009-09-08 | Aten International Co., Ltd. | Connector encompassing 15-pin high density D-SUB pinout having additional pin capacity |
| CN201117847Y (en) * | 2007-04-18 | 2008-09-17 | 东莞市金昊电子有限公司 | Combination type connector |
| CN201226393Y (en) * | 2008-06-18 | 2009-04-22 | 东莞市金昊电子有限公司 | Combined connector connected through insertion mode |
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| CN201541025U (en) * | 2010-02-05 | 2010-08-04 | 陕西四菱电子有限责任公司 | On-site combined rectangle high-low frequency mixed connector |
| CN105352656A (en) * | 2014-07-30 | 2016-02-24 | 无锡华润上华半导体有限公司 | Test device and test method for pressure sensor |
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