CN109340992B - Operation method and system for controlling reliability of air conditioner and air conditioner - Google Patents
Operation method and system for controlling reliability of air conditioner and air conditioner Download PDFInfo
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- CN109340992B CN109340992B CN201811203836.6A CN201811203836A CN109340992B CN 109340992 B CN109340992 B CN 109340992B CN 201811203836 A CN201811203836 A CN 201811203836A CN 109340992 B CN109340992 B CN 109340992B
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- temperature sensor
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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
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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
Abstract
The invention provides an operation method and system for controlling the reliability of an air conditioner and the air conditioner. The invention relates to an operation method for controlling the reliability of an air conditioner, which comprises the following steps: judging whether the temperature sensor fails according to a temperature signal sent by the temperature sensor, if so, continuously acquiring the real-time outdoor environment temperature by the air conditioner, automatically matching each operation parameter of the system corresponding to the outdoor temperature by the air conditioner according to the real-time outdoor temperature, and continuously operating according to each operation parameter of the automatically matched system; otherwise, the normal mode operation is continued. The control method can continue to control the normal operation of the air conditioner after the temperature sensor fails, thereby meeting the normal use of people.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an operation method and system for controlling the reliability of an air conditioner and the air conditioner.
Background
At present, each temperature sensor is required to detect in the running process of the variable frequency air conditioner, and the detected temperature is continuously fed back to the electronic control in real time to guide the compressor and each component to execute actions. After long-term operation, the resistance value of the temperature sensor changes or the temperature sensor fails, and for the reliability of the air conditioner, the air conditioning unit cannot operate during the failure of the temperature sensor. And if the air conditioner can not run in summer, the indoor temperature can not meet the normal living environment of people, and the normal rest of people is influenced.
Disclosure of Invention
In view of this, the present invention is directed to a method for operating an air conditioner with reliability, so as to solve the problem that the air conditioner cannot operate normally after a temperature sensor fails.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an operation method for controlling reliability of an air conditioner includes the steps of:
judging whether the temperature sensor fails according to a temperature signal sent by the temperature sensor, if so, continuously acquiring the real-time outdoor environment temperature by the air conditioner, automatically matching each operation parameter of the system corresponding to the outdoor temperature by the air conditioner according to the real-time outdoor temperature, and continuously operating according to each operation parameter of the automatically matched system; otherwise, the normal mode operation is continued.
Further, the determining whether the temperature sensor fails according to the temperature signal sent by the temperature sensor includes: judging whether the detection result detected by the temperature sensor deviates from the standard of the normal range by +/-55 ℃ according to the temperature signal sent by the temperature sensor, if so, continuing timing to keep the time deviating from the normal range; otherwise, the temperature sensor does not fail and continues to operate according to a normal mode;
according to the time continuously deviating from the normal range during the continuous timing, judging whether the time continuously deviating from the normal range is larger than a first preset time, and if so, determining that the temperature sensor is invalid; otherwise, the temperature sensor is not failed, and the operation according to the normal mode is continued.
Further, the first preset time is as follows: 40-70 s.
Further, the first preset time is as follows: for 60 s.
Further, the temperature sensor includes: exhaust temperature sensor, cold temperature sensor, defrost temperature sensor, module temperature sensor.
Further, the air conditioner automatically matching each operation parameter of the system corresponding to the outdoor temperature according to the real-time outdoor temperature includes: the air conditioner automatically matches every 2 minutes in the operation process.
Further, when the automatic matching is performed, the parameters corresponding to the current failure temperature sensor are matched, and then other parameters of the system are matched one by one.
Further, the normal range of the temperature of the exhaust port of the compressor detected by the exhaust temperature sensor is as follows: 62-100 ℃; the normal temperature range of the middle part of the coil pipe of the heat exchanger detected by the cold-medium temperature sensor is as follows: -22 ℃ to 60 ℃; the normal range of the defrosting temperature detected by the defrosting temperature sensor for the heat exchanger is as follows: -16 ℃ to 52 ℃; the temperature range of the module temperature sensor for detecting the electric control device in the electric control box in the compressor is as follows: 0-85 ℃.
Compared with the prior art, the air conditioner reliability operation method has the following advantages:
(1) the control method can continue to control the normal operation of the air conditioner after the temperature sensor fails, thereby meeting the normal use of people.
(2) The invention avoids the problem that the air conditioner cannot run due to the failure of the sensor, further improves the comfort level of the user and effectively reduces the complaint rate of the user.
Another objective of the present invention is to provide a control system to solve the problem that the air conditioner cannot operate normally after the temperature sensor fails.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a control system comprises a judging module, a judging module and a control module, wherein the judging module is used for judging whether a temperature sensor fails or not;
the acquisition module is used for acquiring the outdoor environment temperature and the temperature of the temperature sensor;
and the control module is used for controlling the operation of the air conditioner according to any one of the operation methods for controlling the reliability of the air conditioner by combining the judgment module and the acquisition module.
Compared with the prior art, the control system and the operation method for controlling the reliability of the air conditioner have the same advantages, and are not repeated herein.
Another objective of the present invention is to provide an air conditioner to solve the problem that the air conditioner cannot operate normally after the temperature sensor fails.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an air conditioner comprises the control system.
The advantages of the air conditioner and the control system are the same compared with the prior art, and the description is omitted.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a first flowchart of a control method according to embodiment 1 of the present invention;
fig. 2 is a flowchart of a control method according to embodiment 2 of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
As shown in fig. 1, an operation method for controlling reliability of an air conditioner includes the steps of:
judging whether the temperature sensor fails according to a temperature signal sent by the temperature sensor, if so, continuously acquiring the real-time outdoor environment temperature by the air conditioner, automatically matching each operation parameter of the system corresponding to the outdoor temperature by the air conditioner according to the real-time outdoor temperature, and continuously operating according to each operation parameter of the automatically matched system; otherwise, the normal mode operation is continued.
The control method can continue to control the normal operation of the air conditioner after the temperature sensor fails, thereby meeting the normal use of people.
Example 2
As shown in fig. 2, an operation method for controlling reliability of an air conditioner specifically includes the following steps:
s1, judging whether the temperature sensor detects that the temperature deviates from +/-55 ℃ on the basis of the normal range, if so, continuing to count the time continuously deviating from the normal range; otherwise, continuing to operate according to the normal mode;
s2, judging whether the time continuously deviating from the normal range is greater than a first preset time, if so, determining that the sensor is invalid; otherwise, continuing to operate according to the normal mode;
the first preset time range is as follows: 40-70 s; preferably, the first preset time is as follows: for 60 s.
It should be noted that the first preset time may be changed according to experimental data or the type of the air conditioner.
S3, acquiring the outdoor environment temperature in real time after determining that the sensor is invalid; automatically matching each operation parameter of a system factory corresponding to the current outdoor environment temperature according to the outdoor environment temperature;
for example: when the exhaust temperature sensor fails, the real-time outdoor environment temperature is 35 ℃, and the air conditioner automatically calls each operation parameter stored at 35 ℃ when leaving the factory and matches the current operation parameter.
If the system stores parameters at the current ambient temperature, other parameters than the exhaust temperature are satisfied. The exhaust temperature in the system operation process is used as the actual temperature to control the operation according to the stored exhaust temperature by default, and other operation parameters are kept unchanged.
The parameter error of the system matching is +/-2 ℃, and the overload operation of the air conditioner caused by the error of the parameter matching is prevented.
The invention avoids the problem that the air conditioner cannot run due to the failure of the sensor, further improves the comfort level of the user and effectively reduces the complaint rate of the user.
Example 3
The difference between this embodiment and the above-mentioned embodiment is that after automatically matching each operation parameter of the system factory corresponding to the current outdoor environment temperature, the method further includes the following steps:
and S4, automatically matching each operation parameter of the system factory corresponding to the current outdoor environment temperature, and automatically matching the air conditioner once every 2 minutes in the operation process. The invention can effectively prevent other parameter changes caused by load changes.
Example 4
The present embodiment differs from the above embodiments in that the temperature sensor is: exhaust temperature sensor, cold temperature sensor, defrost temperature sensor, module temperature sensor.
And the exhaust temperature sensor is used for detecting the temperature of the exhaust port of the compressor.
And the cold-medium temperature sensor is used for detecting the temperature in the middle of the coil of the heat exchanger.
And the defrosting temperature sensor is used for detecting the defrosting temperature of the heat exchanger.
And the module temperature sensor is used for detecting the temperature of an electric control device in the electric control box in the compressor.
Note that the normal range of the temperature of the discharge port of the compressor detected by the discharge temperature sensor is: 62-100 ℃.
The normal temperature range of the middle part of the coil pipe of the heat exchanger detected by the cold and middle temperature sensors is as follows: -22 ℃ to 60 ℃.
The normal range of the defrosting temperature detected by the defrosting temperature sensor for the heat exchanger is as follows: -16 ℃ to 52 ℃.
The temperature range of the module temperature sensor for detecting the electric control device in the electric control box in the compressor is as follows: 0-85 ℃.
For the selection of the temperature sensor, the present invention is only a proper selection. The implementation of the present invention is not limited to the above temperature sensors, and the temperature sensors of the technical scheme of the present invention can be implemented.
The method can effectively judge whether the temperature sensor fails according to the corresponding temperature range of the temperature sensor, thereby effectively improving the failure judgment accuracy of the temperature sensor.
Example 5
The difference between the embodiment and the embodiment is that the air conditioner system automatically calls the stored data for matching, firstly detects the outdoor environment temperature, firstly matches the self parameters corresponding to the current failure temperature sensor during automatic matching, and then matches other parameters in the system one by one; the system parameters include: the middle temperature of the coil pipe of the outdoor heat exchanger, the exhaust temperature of an outdoor compressor, the refrigeration supercooling degree and the high pressure value; the high pressure corresponds to the saturation temperature, the exhaust superheat degree, the outdoor compressor suction temperature, the low pressure value, the low pressure corresponds to the saturation temperature value, and the suction superheat degree; the system comprises a compressor, an outdoor unit, an outdoor fan, an electric control driving temperature value, an indoor unit coil pipe temperature, an indoor unit environment temperature and other parameters. The invention does not limit the specific parameter matching number, and the parameter matching can be set by the user when the user leaves the factory according to the type of the air conditioner.
It should be noted that table 1 and table 2 of the present invention are parameters corresponding to the cooling mode and parameters corresponding to the heating mode, respectively; however, the parameters in tables 1 and 2 are only selected partial parameters, and not all factory parameters.
Table 1: corresponding parameters in the refrigeration mode;
table 2: corresponding parameters in a heating mode;
the refrigeration supercooling degree in tables 1 and 2 refers to a value obtained by subtracting the condenser outlet temperature from the condensation pressure saturation temperature.
The exhaust superheat degree refers to the temperature difference between the temperature of the compressor exhaust pipe and the saturation temperature corresponding to the actual condensing pressure.
The suction superheat is the suction temperature of the compressor minus the saturation temperature corresponding to the evaporation pressure.
The heating superheat degree refers to the saturation temperature corresponding to the suction temperature minus the evaporation pressure of the compressor. The other values in tables 1 and 2 were directly measured.
Example 6
A control system, comprising a control unit for controlling a motor,
the judging module is used for judging whether the temperature sensor fails or not;
the acquisition module is used for acquiring the outdoor environment temperature and the temperature of the temperature sensor;
and the control module is used for controlling the operation of the air conditioner according to the operation method for controlling the reliability of the air conditioner in any one of embodiments 1 to 5 by combining the judgment module and the acquisition module.
The control system can continue to control the normal operation of the air conditioner after the temperature sensor fails, so that the normal use of people is met. The control system of the invention not only can simply judge and control, but also can accurately judge whether the temperature sensor is correctly deviated from the normal temperature range, thereby enabling the control module to accurately control. The accuracy of system judgment and control is effectively improved.
Example 7
An air conditioner comprising the control system of embodiment 6 above. The air conditioner can continue to control the normal operation of the air conditioner after the temperature sensor fails, so that the normal use of people is met.
The air conditioner can automatically call the data stored by the system from the system to simulate the situation when the temperature sensor fails in the running process. And the default judgment is carried out according to data stored in the system, so that the condition that the air conditioner cannot run due to the failure of the sensor is avoided.
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, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An operation method for controlling reliability of an air conditioner, comprising the steps of:
judging whether the temperature sensor fails according to a temperature signal sent by the temperature sensor, if so, continuously acquiring real-time outdoor environment temperature by the air conditioner, automatically matching each operation parameter of a system corresponding to the outdoor temperature according to the real-time outdoor temperature in the operation process of the air conditioner, and continuously operating according to each operation parameter of the automatically matched system, wherein the operation parameters comprise system pressure, compressor operation frequency and system temperature value, and the system comprises heating and cooling modes; otherwise, the normal mode operation is continued.
2. The operation method for controlling the reliability of an air conditioner according to claim 1, wherein the determining whether the temperature sensor is failed according to the temperature signal transmitted from the temperature sensor comprises: judging whether the detection result detected by the temperature sensor deviates from the standard of the normal range by +/-55 ℃ according to the temperature signal sent by the temperature sensor, if so, continuing timing to keep the time deviating from the normal range; otherwise, the temperature sensor does not fail and continues to operate according to a normal mode;
according to the time continuously deviating from the normal range during the continuous timing, judging whether the time continuously deviating from the normal range is larger than a first preset time, and if so, determining that the temperature sensor is invalid; otherwise, the temperature sensor is not failed, and the operation according to the normal mode is continued.
3. The operation method for controlling the reliability of an air conditioner according to claim 2, wherein the first preset time is: 40-70 s.
4. The operation method for controlling the reliability of an air conditioner according to claim 2, wherein the first preset time is: for 60 s.
5. An operation method of controlling reliability of an air conditioner according to claim 1, wherein the temperature sensor comprises: exhaust temperature sensor, cold temperature sensor, defrost temperature sensor, module temperature sensor.
6. The operation method for controlling the reliability of the air conditioner according to claim 1 or 2, wherein the step of automatically matching each operation parameter of the corresponding system under the outdoor temperature according to the real-time outdoor temperature by the air conditioner comprises the following steps: the air conditioner automatically matches every 2 minutes in the operation process.
7. The operation method for controlling the reliability of the air conditioner according to claim 1, wherein when the automatic matching is performed, the self-parameters corresponding to the current failure temperature sensor are firstly matched, and then other parameters of the system are matched one by one.
8. The operation method for controlling the reliability of the air conditioner according to claim 5, wherein the discharge temperature sensor detects the normal range of the temperature of the discharge port of the compressor as: 62-100 ℃; the normal temperature range of the middle part of the coil pipe of the heat exchanger detected by the cold-medium temperature sensor is as follows: -22 ℃ to 60 ℃; the normal range of the defrosting temperature detected by the defrosting temperature sensor for the heat exchanger is as follows: -16 ℃ to 52 ℃; the temperature range of the module temperature sensor for detecting the electric control device in the electric control box in the compressor is as follows: 0-85 ℃.
9. The control system is characterized by comprising a judging module, a judging module and a control module, wherein the judging module is used for judging whether a temperature sensor fails or not;
the acquisition module is used for acquiring the outdoor environment temperature and the temperature of the temperature sensor;
a control module, configured to control operation of the air conditioner according to the operation method for controlling reliability of an air conditioner as claimed in any one of claims 1 to 8, in combination with the determining module and the obtaining module.
10. An air conditioner characterized by comprising the control system of claim 9.
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| CN113063215B (en) * | 2020-01-02 | 2022-10-25 | 青岛海尔空调电子有限公司 | Rotating speed control method of air conditioner external fan |
| CN112944577B (en) * | 2021-03-18 | 2022-04-19 | 宁波奥克斯电气股份有限公司 | Compressor frequency control method and device and air conditioner |
| CN113074436B (en) * | 2021-05-07 | 2022-03-29 | 宁波奥克斯电气股份有限公司 | Control method and device for failure of indoor temperature sensor and air conditioner |
| CN114061254A (en) * | 2021-10-28 | 2022-02-18 | 青岛海尔生物医疗股份有限公司 | Method and device for self-protection of refrigeration equipment, refrigeration equipment and storage medium |
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