CN104132770A - Air conditioner outdoor unit voltage-sharing detection method and air conditioner outdoor unit voltage-sharing detection system - Google Patents
Air conditioner outdoor unit voltage-sharing detection method and air conditioner outdoor unit voltage-sharing detection system Download PDFInfo
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- CN104132770A CN104132770A CN201410336786.4A CN201410336786A CN104132770A CN 104132770 A CN104132770 A CN 104132770A CN 201410336786 A CN201410336786 A CN 201410336786A CN 104132770 A CN104132770 A CN 104132770A
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- pressure sensor
- voltage
- air conditioner
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Abstract
The invention discloses an air conditioner outdoor unit voltage-sharing detection method and an air conditioner outdoor unit voltage-sharing detection system. The method comprises the following steps: when refrigerant is poured into a compressor, a high-voltage sensor is adopted to acquire the pressure on a suction pipe of the compressor in real time, and a low-voltage sensor is adopted to acquire the pressure on an exhaust pipe of the compressor in real time; the acquired pressure on the suction pipe of the compressor and the acquired pressure on the exhaust pipe of the compressor are compared; and if the difference between the pressure on the suction pipe of the compressor and the pressure on the exhaust pipe of the compressor is within a preset range of voltage sharing difference, that the compressor is currently filled with refrigerant and is in a non-vacuum state can be determined. According to the air conditioner outdoor unit voltage-sharing detection method and the air conditioner outdoor unit voltage-sharing detection system provided by the invention, refrigerant filling in high-voltage and low-voltage cavities of the compressor is indirectly judged through detection of pressure information inside the compressor, so that the situation in which electrical safety test is performed on withstand voltage of the compressor in a vacuum state to cause electric arc and damage compressor terminals is avoided.
Description
Technical field
The present invention relates to detection of air-conditioning technical field, particularly relate to a kind of equal pressure detection method and system of outdoor machine of air-conditioner.
Background technology
Multi-connected machine in process of production, need to be tested to unit piece electrical security capabilities, and one of them project is the voltage 1 minute that applies 1250V, checking unit insulativity.Conventionally, inner at compressor power port, terminal and near object distance are 4mm, just reach the shortest safe creepage distance.But under vacuum state, this distance is just no longer safe, can produce electric arc.
Normal production procedure is: first vacuumize, then pour into refrigerant, finally carry out electrical safety test.Because outer machine system has some restriction devices and kapillary, after vacuumizing, from the refrigerant of the valve perfusion of unit is actual, can could arrive compressor by delay 5-10min.So, in actual production, need to identify refrigerant and when arrive compressor inside, guarantee that compressor is under antivacuum state, just can carry out the voltage-withstand test of electrical safety, to avoid carrying out voltage-withstand test in compressor inside under vacuum state, produce electric arc, damage compressor terminal.
Summary of the invention
Based on this, be necessary defect and deficiency for prior art, a kind of equal pressure detection method and system of outdoor machine of air-conditioner are provided, can accurately detect the pressure condition of compressor inside, while guaranteeing in compressor inside in antivacuum state, carry out electrical safety test, avoided causing the damage of compressor in electrical safety test process.
For realizing the equal pressure detection method of the outdoor machine of air-conditioner that the object of the invention provides, comprise the following steps:
When compressor is carried out to cooling medium charging, adopt the pressure in the suction line of compressor described in high pressure sensor Real-time Collection, meanwhile, adopt the pressure on the gas exhaust piping of compressor described in low pressure sensor Real-time Collection;
The size of the pressure on the pressure in the suction line of the described compressor relatively collecting and the gas exhaust piping of described compressor;
If the difference of the pressure on the pressure in the suction line of described compressor and the gas exhaust piping of described compressor, within the scope of default equal pressure difference, judges in current described compressor and has been full of refrigerant, in antivacuum state.
Therein in an embodiment, the equal pressure detection method of outdoor machine of air-conditioner of the present invention, further comprising the steps of:
Utilize senser sampling circuit card extender to obtain the pressure signal that described high pressure sensor and described low pressure sensor collect, and change, by display, show.
In an embodiment, described equal pressure difference scope is: (high pressure-low pressure)/high pressure≤10% therein.
Correspondingly, for realizing all pressures detection system of the outdoor machine of air-conditioner that the object of the invention provides, comprise high pressure sensor, low pressure sensor, senser sampling circuit card extender and display;
Described high pressure sensor, is arranged in the suction line of compressor, and its signal output part connects a signal input part of described senser sampling circuit card extender;
Described low pressure sensor, is arranged on the gas exhaust piping of compressor, and its signal output part connects another signal input part of described senser sampling circuit card extender;
The signal output part of described senser sampling circuit card extender connects described display.
Beneficial effect of the present invention: equal pressure detection method and the system of outdoor machine of air-conditioner provided by the invention, by detecting the pressure information of compressor inside, indirectly judge compressor high-low pressure chamber coolant injection situation, thereby avoided under vacuum state, compressor being beaten withstand voltage, carry out electrical safety test and produce electric arc, damage compressor terminal.
Accompanying drawing explanation
In order to make the equal pressure detection method of outdoor machine of air-conditioner of the present invention and object, technical scheme and the advantage of system clearer, below in conjunction with concrete drawings and the specific embodiments, equal pressure detection method and the system of outdoor machine of air-conditioner of the present invention are further elaborated.
Fig. 1 is the process flow diagram of an embodiment of the equal pressure detection method of outdoor machine of air-conditioner of the present invention;
Fig. 2 is the structural drawing of an embodiment who all presses detection system of outdoor machine of air-conditioner of the present invention.
Embodiment
Below in conjunction with embodiment, describe the present invention in detail.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Referring to Fig. 1, an embodiment of the equal pressure detection method of outdoor machine of air-conditioner provided by the invention, comprises the following steps:
S100, when compressor is carried out to cooling medium charging, the pressure in the suction line of employing high pressure sensor Real-time Collection compressor, meanwhile, the pressure on the gas exhaust piping of employing low pressure sensor Real-time Collection compressor;
S200, the size of the pressure on the pressure in the suction line of the compressor relatively collecting and the gas exhaust piping of compressor;
S300, if the difference of the pressure on the gas exhaust piping of the pressure in the suction line of compressor and compressor is within the scope of default equal pressure difference, judges in current compressor and has been full of refrigerant, in antivacuum state.Now, can start to carry out electrical safety test.
Wherein, all pressure difference scope is: (high pressure-low pressure)/high pressure≤10%.
When compressor is carried out to cooling medium charging, perfusion along with refrigerant, the pressure of compressor internal high pressure chamber and low-pressure cavity can tend to balance gradually, when the pressure of compressor internal high pressure chamber and low-pressure cavity close, be that the pressure differential of high pressure chest and low-pressure cavity is while reaching certain little scope, can judge that outer machine system is in equal pressure condition, outer machine system is now completely in antivacuum state.
Compressor internal high pressure chamber is connected with air intake duct, and low-pressure cavity is connected with gas outlet.By high pressure sensor being set in the suction line of compressor, on the gas exhaust piping of compressor, low pressure sensor is set, the high pressure chest of compressor inside and the pressure information of low-pressure cavity can be indirectly obtained, and then whether current compressor can be judged in antivacuum state by the big or small utmost point of the pressure on the gas exhaust piping of the pressure in the suction line of comparison compressor and compressor.Concrete, if the difference of the pressure on the gas exhaust piping of the pressure in the suction line of compressor and compressor is within the scope of default equal pressure difference, judge that current compressor, in antivacuum state, can start to carry out electrical safety test; If exceed default equal pressure difference scope, judge that current compressor is also in vacuum state, be not suitable for carrying out electrical safety test.
The equal pressure detection method of outdoor machine of air-conditioner of the present invention, simple and reliable, by detecting the pressure information of compressor inside, indirectly judge compressor high-low pressure chamber coolant injection situation, thereby avoided under vacuum state, compressor being beaten withstand voltage, carry out electrical safety test and produce electric arc, damage compressor terminal.
As a kind of embodiment, the equal pressure detection method of outdoor machine of air-conditioner of the present invention, further comprising the steps of:
S400, utilizes senser sampling circuit card extender to obtain the pressure signal that high pressure sensor and low pressure sensor collect, and changes, and shows convenient judgement by display.When two force value are close, its difference, within the scope of default equal pressure difference, can judge that system all presses, and compressor inside has been full of refrigerant and has reached antivacuum state, can play withstand voltage operation.
Based on same inventive concept, the corresponding embodiment of the present invention also provides a kind of all pressures detection system of outdoor machine of air-conditioner, the principle of dealing with problems due to this system and the equal pressure detection method of aforementioned outdoor machine of air-conditioner to realize principle similar, the enforcement of this system can realize by the detailed process of preceding method, therefore repeats part and repeats no more.
An embodiment who all presses detection system of outdoor machine of air-conditioner provided by the invention, as shown in Figure 2, comprises high pressure sensor 100, low pressure sensor 200, senser sampling circuit card extender 300 and display 400;
High pressure sensor 100 is arranged in the suction line of compressor, a signal input part of its signal output part connecting sensor sample circuit card extender 300; Low pressure sensor 200 is arranged on the gas exhaust piping of compressor, another signal input part of its signal output part connecting sensor sample circuit card extender 300; The signal output part of senser sampling circuit card extender 300 connects display 400.Senser sampling circuit card extender 300 obtains the pressure signal that high pressure sensor 100 and low pressure sensor 200 collect, and changes, and by display, shows.
During work, high pressure sensor 100 is connected on compressor suction duct, low pressure sensor 200 is connected on compressor exhaust pipe, the output line of high pressure sensor 100 and low pressure sensor 200 is connected to the signal input part of senser sampling circuit card extender 300, open display 400 and observe interface, as shown, two force value are close, and its difference is within the scope of default equal pressure difference, illustrate that compressor inside has been full of refrigerant and has reached antivacuum state, can play withstand voltage operation.Also can, by setting program, automatically the force value detecting be judged.
Equal pressure detection method and the system of outdoor machine of air-conditioner of the present invention, simple and reliable, be convenient to realize, by detecting the pressure information of compressor inside, indirectly judge compressor high-low pressure chamber coolant injection situation, thereby avoided under vacuum state, compressor being beaten withstand voltage, carried out electrical safety test and produce electric arc, damaged compressor terminal.
Above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (4)
1. an equal pressure detection method for outdoor machine of air-conditioner, is characterized in that, comprises the following steps:
When compressor is carried out to cooling medium charging, adopt the pressure in the suction line of compressor described in high pressure sensor Real-time Collection, meanwhile, adopt the pressure on the gas exhaust piping of compressor described in low pressure sensor Real-time Collection;
The size of the pressure on the pressure in the suction line of the described compressor relatively collecting and the gas exhaust piping of described compressor;
If the difference of the pressure on the pressure in the suction line of described compressor and the gas exhaust piping of described compressor, within the scope of default equal pressure difference, judges in current described compressor and has been full of refrigerant, in antivacuum state.
2. the equal pressure detection method of outdoor machine of air-conditioner according to claim 1, is characterized in that, further comprising the steps of:
Utilize senser sampling circuit card extender to obtain the pressure signal that described high pressure sensor and described low pressure sensor collect, and change, by display, show.
3. the equal pressure detection method of outdoor machine of air-conditioner according to claim 1 and 2, is characterized in that, described equal pressure difference scope is: (high pressure-low pressure)/high pressure≤10%.
4. all pressures detection system of outdoor machine of air-conditioner, is characterized in that, comprises high pressure sensor, low pressure sensor, senser sampling circuit card extender and display;
Described high pressure sensor, is arranged in the suction line of compressor, and its signal output part connects a signal input part of described senser sampling circuit card extender;
Described low pressure sensor, is arranged on the gas exhaust piping of compressor, and its signal output part connects another signal input part of described senser sampling circuit card extender;
The signal output part of described senser sampling circuit card extender connects described display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410336786.4A CN104132770B (en) | 2014-07-15 | 2014-07-15 | Air conditioner outdoor unit voltage-sharing detection method and air conditioner outdoor unit voltage-sharing detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410336786.4A CN104132770B (en) | 2014-07-15 | 2014-07-15 | Air conditioner outdoor unit voltage-sharing detection method and air conditioner outdoor unit voltage-sharing detection system |
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| Publication Number | Publication Date |
|---|---|
| CN104132770A true CN104132770A (en) | 2014-11-05 |
| CN104132770B CN104132770B (en) | 2017-02-08 |
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| CN201410336786.4A Expired - Fee Related CN104132770B (en) | 2014-07-15 | 2014-07-15 | Air conditioner outdoor unit voltage-sharing detection method and air conditioner outdoor unit voltage-sharing detection system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11201596A (en) * | 1998-01-14 | 1999-07-30 | Matsushita Electric Ind Co Ltd | Pressure detecting means of refrigerating cycle device and refrigerating cycle device |
| CN1482426A (en) * | 2003-08-06 | 2004-03-17 | 和彰环科股份有限公司 | Ceckout device for automobile cold air system and compressor |
| CN101051005A (en) * | 2006-07-10 | 2007-10-10 | 东南大学 | Multifunction refrigeration air conditioner test platform |
| CN201443501U (en) * | 2009-07-02 | 2010-04-28 | 大连三洋压缩机有限公司 | Starting performance detector for single-phase compressors |
| CN102095558A (en) * | 2010-11-24 | 2011-06-15 | 南通众联科技服务有限公司 | Refrigeration pump pressure leakage detection system |
-
2014
- 2014-07-15 CN CN201410336786.4A patent/CN104132770B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11201596A (en) * | 1998-01-14 | 1999-07-30 | Matsushita Electric Ind Co Ltd | Pressure detecting means of refrigerating cycle device and refrigerating cycle device |
| CN1482426A (en) * | 2003-08-06 | 2004-03-17 | 和彰环科股份有限公司 | Ceckout device for automobile cold air system and compressor |
| CN101051005A (en) * | 2006-07-10 | 2007-10-10 | 东南大学 | Multifunction refrigeration air conditioner test platform |
| CN201443501U (en) * | 2009-07-02 | 2010-04-28 | 大连三洋压缩机有限公司 | Starting performance detector for single-phase compressors |
| CN102095558A (en) * | 2010-11-24 | 2011-06-15 | 南通众联科技服务有限公司 | Refrigeration pump pressure leakage detection system |
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| CN104132770B (en) | 2017-02-08 |
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