CN109143063B - Detection device and method for high-low voltage switch of air conditioner - Google Patents
Detection device and method for high-low voltage switch of air conditioner Download PDFInfo
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- CN109143063B CN109143063B CN201811296400.6A CN201811296400A CN109143063B CN 109143063 B CN109143063 B CN 109143063B CN 201811296400 A CN201811296400 A CN 201811296400A CN 109143063 B CN109143063 B CN 109143063B
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 11
- 238000004378 air conditioning Methods 0.000 claims abstract description 16
- 230000002159 abnormal effect Effects 0.000 claims description 11
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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Abstract
The invention discloses a detection device and a detection method for a high-low voltage switch of an air conditioner, wherein the detection device comprises the following components: the high-low voltage switch signal acquisition module is respectively connected with a high-voltage switch and a low-voltage switch of the air conditioning unit and is used for acquiring a high-voltage switch signal of the high-voltage switch and a low-voltage switch signal of the low-voltage switch when the air conditioning unit is in operation; the air conditioner operation parameter acquisition module is used for acquiring the pressure parameter of the low-voltage switch and the temperature parameter of the high-voltage switch when the air conditioner unit is operated; and the judging module is used for judging whether the high-voltage switch and the low-voltage switch are normal or not according to the corresponding relation between the pressure parameter at the low-voltage switch and the temperature parameter at the high-voltage switch and the low-voltage switch signal respectively. The detection device and the detection method for the high-low voltage switch of the air conditioner can automatically detect whether the high-low voltage switch of the air conditioner runs abnormally or not.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a detection device and method for a high-low voltage switch of an air conditioner.
Background
The high-low voltage switch is a pressure protection device for an air conditioning system, and the high-low voltage switch is manually plugged and butted by adopting a butt plug in the installation process of the high-low voltage switch in the current production process, and the operation process needs to be manually butted twice. The high-low voltage switch is easy to be operated for a long time and is not connected or other faults occur, so that the whole air conditioner is in fault when being detected or used in a customer's home.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides a detection device and a detection method for an air conditioner high-low voltage switch, which can automatically detect whether the air conditioner high-low voltage switch is normal.
In an embodiment of the present invention, a detection device for a high-low voltage switch of an air conditioner is provided, including:
the high-low voltage switch signal acquisition module is respectively connected with a high-voltage switch and a low-voltage switch of the air conditioning unit and is used for acquiring a high-voltage switch signal of the high-voltage switch and a low-voltage switch signal of the low-voltage switch when the air conditioning unit is in operation;
the air conditioner operation parameter acquisition module is used for acquiring the pressure parameter of the low-voltage switch and the temperature parameter of the high-voltage switch when the air conditioner unit is in operation;
and the judging module is used for judging whether the high-voltage switch and the low-voltage switch are normal or not according to the corresponding relation between the pressure parameter at the low-voltage switch and the temperature parameter at the high-voltage switch and the low-voltage switch signal respectively.
In the embodiment of the invention, the device for detecting the high-low voltage switch of the air conditioner further comprises:
the power supply module is respectively connected with the high-low voltage switch signal acquisition module, the air conditioner operation parameter acquisition module and the judgment module and is used for supplying power to the high-low voltage switch signal acquisition module, the air conditioner operation parameter acquisition module and the judgment module.
In the embodiment of the invention, the device for detecting the high-low voltage switch of the air conditioner further comprises:
and the alarm module is used for alarming when the high-voltage switch and the low-voltage switch are judged to be abnormal in operation.
In the embodiment of the invention, the alarm module is a buzzer.
In the embodiment of the invention, the judging module is realized by a singlechip.
In the embodiment of the invention, when the pressure parameter at the low-voltage switch is lower than the opening pressure threshold of the low-voltage switch, if the low-voltage switch signal of the low-voltage switch is opened, and then after the pressure parameter at the low-voltage switch rises above the closing pressure threshold of the low-voltage switch, the low-voltage switch signal of the low-voltage switch is converted from open to closed, and the judging module judges that the low-voltage switch operates normally, otherwise, judges that the low-voltage switch operates abnormally.
In the embodiment of the invention, when the temperature parameter at the high-voltage switch is higher than the disconnection temperature threshold of the high-voltage switch, if the high-voltage switch signal of the high-voltage switch is disconnected and then the temperature parameter at the high-voltage switch is reduced below the connection temperature threshold of the high-voltage switch, the high-voltage switch signal of the high-voltage switch is converted from disconnection to connection, and the judging module judges that the high-voltage switch operates normally, otherwise, judges that the high-voltage switch operates abnormally.
The embodiment of the invention also provides a detection method of the high-low voltage switch of the air conditioner, which comprises the following steps:
parameter acquisition: acquiring a high-voltage switch signal of a high-voltage switch, a low-voltage switch signal of a low-voltage switch when the air conditioning unit is in operation, and a pressure parameter and a temperature parameter of the low-voltage switch and the high-voltage switch when the air conditioning unit is in operation;
judging: and judging whether the high-voltage switch and the low-voltage switch normally operate according to the corresponding relation between the pressure parameter at the low-voltage switch and the temperature parameter at the high-voltage switch and the low-voltage switch signal respectively.
In the embodiment of the invention, the method for detecting the high-low voltage switch of the air conditioner further comprises the following steps:
alarming: and alarming when the high-voltage switch and the low-voltage switch are judged to be abnormal in operation.
In the embodiment of the present invention, in the judging step, when the pressure parameter at the low-voltage switch is lower than the off-pressure threshold of the low-voltage switch, if the low-voltage switch signal of the low-voltage switch is off and then the pressure parameter at the low-voltage switch rises above the on-pressure threshold of the low-voltage switch, the low-voltage switch signal of the low-voltage switch is switched from off to on, and if the low-voltage switch is not normally operated, the low-voltage switch is abnormally operated.
In the embodiment of the present invention, in the judging step, when the temperature parameter at the high-voltage switch is higher than the off-temperature threshold of the high-voltage switch, if the high-voltage switch signal of the high-voltage switch is off and then the temperature parameter at the high-voltage switch falls below the on-temperature threshold of the high-voltage switch, the high-voltage switch signal of the high-voltage switch is switched from off to on, and if the temperature parameter is not higher than the off-temperature threshold of the high-voltage switch, the high-voltage switch is judged to operate normally, otherwise, the high-voltage switch is judged to operate abnormally.
Compared with the prior art, in the detection device and method for the high-low voltage switch of the air conditioner, the high-voltage switch signal of the high-voltage switch, the low-voltage switch signal of the low-voltage switch, the pressure parameter of the low-voltage switch and the temperature parameter of the high-voltage switch of the air conditioner when the air conditioner is in operation are obtained, and whether the high-voltage switch and the low-voltage switch are in normal operation or not is judged according to the corresponding relation between the pressure parameter of the low-voltage switch and the temperature parameter of the high-voltage switch and the low-voltage switch signal, so that whether the high-low voltage switch and the low-voltage switch of the air conditioner are abnormal or not can be rapidly found when an air conditioner is tested.
Drawings
FIG. 1 is a schematic diagram of a detecting device for a high-low voltage switch of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for detecting a high-low voltage switch of an air conditioner according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, in an embodiment of the present invention, a detection apparatus for a high-low voltage switch of an air conditioner is provided, which includes a high-low voltage switch signal acquisition module 11, an air conditioner operation parameter acquisition module 12, a judgment module 13, a power supply module 14, and an alarm module 15. The following detailed description is given respectively.
The high-low voltage switch signal acquisition module 11 is respectively connected with the low-voltage switch 21 and the high-voltage switch 22 of the air conditioning unit 20, and is used for acquiring the low-voltage switch signal of the low-voltage switch 21 and the high-voltage switch signal of the high-voltage switch 22 when the air conditioning unit 20 is in operation.
The air-conditioning operation parameter obtaining module 12 is configured to obtain a pressure parameter at the low-voltage switch 21 and a temperature parameter at the high-voltage switch 22 when the air-conditioning unit 20 is in operation.
The judging module 13 is configured to judge whether the low-voltage switch 21 and the high-voltage switch 22 operate normally according to the correspondence between the pressure parameter at the low-voltage switch 21 and the temperature parameter at the high-voltage switch 22 and the low-voltage switch signal and the high-voltage switch signal.
It should be noted that the low-voltage switch will be automatically opened when the pressure is lower than a certain pressure value (e.g. 0.05 Mpa), and automatically restored to the closed state when the low-voltage pressure is raised to a certain pressure value (e.g. 0.15 Mpa). The high-voltage switch is a protection switch of the air conditioner and is equivalent to a relay, and the air conditioner can be automatically disconnected and stopped when the air outlet temperature of the air conditioner is too high so as to protect the compressor; when the temperature of the air outlet of the air conditioner is reduced, the high-voltage switch can automatically return to the closed state.
In this embodiment of the present invention, when the pressure parameter at the low-voltage switch 21 is lower than the off-pressure threshold of the low-voltage switch 21, if the low-voltage switch signal of the low-voltage switch 21 is off and then the pressure parameter at the low-voltage switch 21 rises above the on-pressure threshold of the low-voltage switch 21, the low-voltage switch signal of the low-voltage switch 21 is switched from off to on, and the judging module determines that the low-voltage switch 21 is operating normally, otherwise determines that the low-voltage switch 21 is operating abnormally. When the temperature parameter at the high voltage switch 22 is higher than the opening temperature threshold of the high voltage switch 22, if the high voltage switch signal of the high voltage switch 22 is open and then the temperature parameter at the high voltage switch 22 drops below the closing temperature threshold of the high voltage switch 22, the high voltage switch signal of the high voltage switch 22 is switched from open to on, the judging module 13 judges that the high voltage switch 22 is operating normally, otherwise, judges that the high voltage switch 22 is operating abnormally.
In the embodiment of the present invention, the judging module 13 may be implemented by a single chip microcomputer.
The power module 14 is respectively connected with the high-low voltage switch signal acquisition module 11, the air conditioner operation parameter acquisition module 12 and the judgment module 14, and is used for supplying power to the high-low voltage switch signal acquisition module 11, the air conditioner operation parameter acquisition module 12 and the judgment module 13.
The alarm module 15 is connected to the judging module 13, and is configured to alarm according to a signal sent by the judging module 13 when the judging module 13 judges that the high-voltage switch or the low-voltage switch is abnormal. The alarm module 15 may be a buzzer.
As shown in fig. 2, in an embodiment of the present invention, a method for detecting a high-low voltage switch of an air conditioner is further provided, which includes:
step S1, parameter acquisition: acquiring a high-voltage switch signal of a high-voltage switch, a low-voltage switch signal of a low-voltage switch when the air conditioning unit is in operation, and a pressure parameter and a temperature parameter of the low-voltage switch and the high-voltage switch when the air conditioning unit is in operation;
step S2, judging: and judging whether the high-voltage switch and the low-voltage switch normally operate according to the corresponding relation between the pressure parameter at the low-voltage switch and the temperature parameter at the high-voltage switch and the low-voltage switch signal respectively.
Step S3, an alarm step: and alarming when the high-voltage switch and the low-voltage switch are judged to be abnormal in operation.
In the judging step, when the pressure parameter at the low-voltage switch is lower than the opening pressure threshold of the low-voltage switch, if the low-voltage switch signal of the low-voltage switch is open, and then after the pressure parameter at the low-voltage switch rises above the closing pressure threshold of the low-voltage switch, the low-voltage switch signal of the low-voltage switch is switched from open to on, and if the pressure parameter at the low-voltage switch is lower than the opening pressure threshold of the low-voltage switch, the low-voltage switch is judged to operate normally, otherwise, the low-voltage switch is judged to operate abnormally. When the temperature parameter at the high-voltage switch is higher than the disconnection temperature threshold value of the high-voltage switch, if the high-voltage switch signal of the high-voltage switch is disconnected and then the temperature parameter at the high-voltage switch is reduced below the connection temperature threshold value of the high-voltage switch, the high-voltage switch signal of the high-voltage switch is converted from disconnection to connection, the high-voltage switch is judged to be normal in operation, and otherwise, the high-voltage switch is judged to be abnormal in operation.
In summary, in the detection device and method for the high-low voltage switch of the air conditioner, the high-voltage switch signal of the high-voltage switch, the low-voltage switch signal of the low-voltage switch, the pressure parameter of the low-voltage switch and the temperature parameter of the high-voltage switch of the air conditioner during operation are obtained, and whether the high-voltage switch and the low-voltage switch are normal or not is judged according to the corresponding relation between the pressure parameter of the low-voltage switch and the temperature parameter of the high-voltage switch and the low-voltage switch signal, so that whether the high-low voltage switch and the low-voltage switch of the air conditioner are abnormal or not can be rapidly found during air conditioner test.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The utility model provides a detection device of air conditioner high-low voltage switch which characterized in that includes:
the high-low voltage switch signal acquisition module is respectively connected with a high-voltage switch and a low-voltage switch of the air conditioning unit and is used for acquiring a high-voltage switch signal of the high-voltage switch and a low-voltage switch signal of the low-voltage switch when the air conditioning unit is in operation;
the air conditioner operation parameter acquisition module is used for acquiring the pressure parameter of the low-voltage switch and the temperature parameter of the high-voltage switch when the air conditioner unit is operated;
a judging module for judging whether the high-voltage switch and the low-voltage switch are normal according to the corresponding relation between the pressure parameter at the low-voltage switch and the temperature parameter at the high-voltage switch and the low-voltage switch signal respectively,
when the pressure parameter at the low-voltage switch is lower than the opening pressure threshold value of the low-voltage switch, if the low-voltage switch signal of the low-voltage switch is opened, and then after the pressure parameter at the low-voltage switch rises above the closing pressure threshold value of the low-voltage switch, the low-voltage switch signal of the low-voltage switch is converted from being opened to being conducted, the judging module judges that the low-voltage switch operates normally, otherwise, judges that the low-voltage switch operates abnormally;
when the temperature parameter at the high-voltage switch is higher than the disconnection temperature threshold value of the high-voltage switch, if the high-voltage switch signal of the high-voltage switch is disconnected and then the temperature parameter at the high-voltage switch is reduced below the connection temperature threshold value of the high-voltage switch, the high-voltage switch signal of the high-voltage switch is switched from disconnection to connection, and the judging module judges that the high-voltage switch operates normally, otherwise, judges that the high-voltage switch operates abnormally.
2. The apparatus for detecting a high and low voltage switch of an air conditioner as claimed in claim 1, further comprising:
the power supply module is respectively connected with the high-low voltage switch signal acquisition module, the air conditioner operation parameter acquisition module and the judgment module and is used for supplying power to the high-low voltage switch signal acquisition module, the air conditioner operation parameter acquisition module and the judgment module.
3. The detecting device for the high-low voltage switch of an air conditioner according to claim 1 or 2, further comprising:
and the alarm module is used for alarming when the high-voltage switch and the low-voltage switch are judged to be abnormal in operation.
4. The detecting device for high and low voltage switch of air conditioner according to claim 3, wherein said alarm module is a buzzer.
5. The apparatus for detecting a high-low voltage switch of an air conditioner according to claim 3, wherein the judging module is implemented by a single chip microcomputer.
6. The method for detecting the high-low voltage switch of the air conditioner is characterized by comprising the following steps of:
parameter acquisition: acquiring a high-voltage switch signal of a high-voltage switch, a low-voltage switch signal of a low-voltage switch, a pressure parameter at the low-voltage switch and a temperature parameter at the high-voltage switch when the air conditioning unit is in operation;
judging: judging whether the high-voltage switch and the low-voltage switch are normal or not according to the corresponding relation between the pressure parameter at the low-voltage switch and the temperature parameter at the high-voltage switch and the low-voltage switch signal respectively,
when the pressure parameter at the low-voltage switch is lower than the opening pressure threshold value of the low-voltage switch, if the low-voltage switch signal of the low-voltage switch is opened, and then after the pressure parameter at the low-voltage switch rises above the closing pressure threshold value of the low-voltage switch, the low-voltage switch signal of the low-voltage switch is converted from being opened to being conducted, the low-voltage switch is judged to be normal in operation, otherwise, the low-voltage switch is judged to be abnormal in operation;
when the temperature parameter at the high-voltage switch is higher than the disconnection temperature threshold value of the high-voltage switch, if the high-voltage switch signal of the high-voltage switch is disconnected and then the temperature parameter at the high-voltage switch is reduced below the connection temperature threshold value of the high-voltage switch, the high-voltage switch signal of the high-voltage switch is converted from disconnection to connection, the high-voltage switch is judged to be normal in operation, and otherwise, the high-voltage switch is judged to be abnormal in operation.
7. The method for detecting a high-low voltage switch of an air conditioner as claimed in claim 6, further comprising:
alarming: and alarming when the high-voltage switch and the low-voltage switch are judged to be abnormal in operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811296400.6A CN109143063B (en) | 2018-11-01 | 2018-11-01 | Detection device and method for high-low voltage switch of air conditioner |
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| CN201811296400.6A CN109143063B (en) | 2018-11-01 | 2018-11-01 | Detection device and method for high-low voltage switch of air conditioner |
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| CN109143063A CN109143063A (en) | 2019-01-04 |
| CN109143063B true CN109143063B (en) | 2023-09-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110749030A (en) * | 2019-10-29 | 2020-02-04 | 益阳欣达天马电器设备制造有限公司 | Detection device and method for high-low voltage switch of air conditioner |
| CN111412683B (en) * | 2020-04-07 | 2021-10-26 | 南京天加环境科技有限公司 | Optimized high-voltage/low-voltage protection control method for air conditioner |
| CN111623484A (en) * | 2020-05-13 | 2020-09-04 | 青岛海尔空调电子有限公司 | Air conditioner, control method thereof and computer readable storage medium |
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| CN104635719A (en) * | 2013-11-13 | 2015-05-20 | 广州汽车集团股份有限公司 | Automotive air conditioning failure diagnosis method, device and system |
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