CN201706632U - Air-conditioning unit current control structure - Google Patents
Air-conditioning unit current control structure Download PDFInfo
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- CN201706632U CN201706632U CN2010202117483U CN201020211748U CN201706632U CN 201706632 U CN201706632 U CN 201706632U CN 2010202117483 U CN2010202117483 U CN 2010202117483U CN 201020211748 U CN201020211748 U CN 201020211748U CN 201706632 U CN201706632 U CN 201706632U
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- compressor
- current
- control structure
- current transformer
- control module
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Abstract
The utility model discloses an air-conditioning unit current control structure, which comprises a compressor, a main power supply, a current transformer and a control module. The compressor is connected with the main power supply by the aid of a power wire; the current transformer is mounted on the power wire between the main power supply and the compressor; and the control module is arranged between the current transformer and the compressor. By arranging the current transformer and the control module between the main power supply and the compressor, the air-conditioning unit current control structure employs the current transformer to measure the work current of the compressor and compare the actually measured current with theoretical value so as to adjust the work load of the compressor. By adopting the current control structure for control, accuracy and instantaneity of data acquisition are greatly improved. Simultaneously, as the transformer is positioned in a more stable environment and the probability of faults is small, the current control structure has higher reliability compared with a traditional control structure, and ensures normal work to the maximum.
Description
Technical field
The utility model relates to the central air-conditioning applied technical field, relates in particular to a kind of control structure of regulating control air-conditioning unit working condition.
Background technology
Because central air-conditioning power is big, usefulness is high, environmental protection and energy saving, function admirable, reliable and stable, therefore is widely used in heavy constructions such as various hotels, meeting-place, mansion, factory.Central air-conditioning is the system engineering of a more complicated, and inside relates to various device and various control system.At present, control to central compressor of air conditioner live load mainly is to adopt temperature control, a temperature sensor is set between main power source and compressor measures Temperature numerical in real time, and the actual numerical value and the theoretical value that record are compared, such as, in process of refrigerastion, if measured value is lower than theoretical value, illustrate that then compressor output is excessive, just should reduce live load, send the off-load signal by control module to compressor this moment; If actual temperature is higher than theoretical value, illustrate that then compressor output is not enough, should strengthen live load, send the signal of increment of load this moment to compressor by control module.Thisly there is following shortcoming by temperature controlled mode, the first, temperature sensor is operated in the comparison rugged environment, and therefore the probability that breaks down is bigger, in case temperature sensor breaks down, control system will lose efficacy, and ran well thereby influence whole unit; The second, because variation of temperature needs the regular hour, therefore temperature sensor measurement to Temperature numerical be not compressor output in real time, that is to say that temperature sensor is not to measure temperature in real time in fact, but a delay is arranged, thereby there is substantial defective in temperature control.
Summary of the invention
The utility model provides a kind of by measuring the air-conditioning unit Current Control structure that electric current is regulated compressor operating at the defective of prior art.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of air-conditioning unit Current Control structure, comprise compressor and main power source, compressor connects main power source by power line, it is characterized in that: this Current Control structure comprises current transformer and control module, and wherein current transformer is installed between main power source and the compressor on the power line, and control module is arranged between current transformer and the compressor, control module one end connects current transformer, and the other end connects compressor.
The utility model operation principle: the current value of transporting to compressor when current transformer is gathered compressor operating in real time from main power source, then the current value that collects is sent to control module, control module compares the practical measurement of current value and the theoretical value of current transformer collection, if the practical measurement of current value is less than theoretical value, control module output increment of load signal, the control compressor increases live load; The practical measurement of current value equals theoretical value, and control module is output signal not; The practical measurement of current value is greater than theoretical value, and control module output off-load signal is controlled compressor and reduced live load.Theoretical value is meant under normal circumstances, the sizes values of compressor operating electric current when a certain state.
The utility model is by being provided with current transformer and control module between main power source and compressor, measure the compressor operating electric current by current transformer, record electric current and theoretical value relatively with actual, regulate the live load of compressor with this, adopt the Current Control structure to control accuracy and the real-time that has improved data acquisition greatly, simultaneously because transformer environment of living in is more stable, out of order probability is little, therefore have higher reliability than traditional control structure, guarantee the equipment operate as normal to greatest extent.
Description of drawings
Fig. 1 is the utility model structured flowchart.
The specific embodiment
Below in conjunction with the specific embodiment the utility model is done a step explanation.
In the present embodiment, with reference to Fig. 1, described air-conditioning unit Current Control structure, comprise compressor and main power source, compressor connects main power source by power line, it is characterized in that: this Current Control structure comprises current transformer and control module, wherein current transformer is installed between main power source and the compressor on the power line, control module is arranged between current transformer and the compressor, and control module one end connects current transformer, and the other end connects the control compressor.
When gathering compressor operating in real time, current transformer transports to the current value of compressor from main power source, then the current value that collects is sent to control module, module compares the practical measurement of current value and the theoretical value of current transformer collection, result relatively divides three kinds of situations: one, the practical measurement of current value is less than theoretical value, illustrate that the compressor operating load is less than normal, control module output this moment increment of load signal, the control compressor increases live load; Two, the practical measurement of current value equals theoretical value, illustrates that the compressor operating load just meets the requirements, and control module is output signal not; Three, the practical measurement of current value illustrates that greater than theoretical value the compressor operating load is excessive, need reduce load, control module output this moment off-load signal, and the control compressor reduces live load.
Below the utility model is described in detail, the above only is one of the utility model preferred embodiment, when not limiting the utility model practical range, be allly to do impartial change and modify, all should still belong in the utility model covering scope according to the application's scope.
Claims (1)
1. air-conditioning unit Current Control structure, comprise compressor and main power source, compressor connects main power source by power line, it is characterized in that: this Current Control structure comprises current transformer and control module, wherein current transformer is installed between main power source and the compressor on the power line, control module is arranged between current transformer and the compressor, and control module one end connects current transformer, and the other end connects compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202117483U CN201706632U (en) | 2010-05-26 | 2010-05-26 | Air-conditioning unit current control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202117483U CN201706632U (en) | 2010-05-26 | 2010-05-26 | Air-conditioning unit current control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201706632U true CN201706632U (en) | 2011-01-12 |
Family
ID=43443791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202117483U Expired - Fee Related CN201706632U (en) | 2010-05-26 | 2010-05-26 | Air-conditioning unit current control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201706632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091185A (en) * | 2014-04-22 | 2015-11-25 | 海信（山东）空调有限公司 | Method and device used for controlling air conditioner and air conditioner |
| CN105465951A (en) * | 2015-12-11 | 2016-04-06 | 珠海格力电器股份有限公司 | Method and device for protecting compressor |
-
2010
- 2010-05-26 CN CN2010202117483U patent/CN201706632U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091185A (en) * | 2014-04-22 | 2015-11-25 | 海信（山东）空调有限公司 | Method and device used for controlling air conditioner and air conditioner |
| CN105091185B (en) * | 2014-04-22 | 2017-10-27 | 海信（山东）空调有限公司 | A kind of method, device and the air conditioner of control air conditioner |
| CN105465951A (en) * | 2015-12-11 | 2016-04-06 | 珠海格力电器股份有限公司 | Method and device for protecting compressor |
| CN105465951B (en) * | 2015-12-11 | 2018-08-03 | 珠海格力电器股份有限公司 | A kind of method and device of protection compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20130526 |