CN101776318A - Method for protecting compressor under high voltage and low voltage conditions - Google Patents
Method for protecting compressor under high voltage and low voltage conditions Download PDFInfo
- Publication number
- CN101776318A CN101776318A CN200910259369A CN200910259369A CN101776318A CN 101776318 A CN101776318 A CN 101776318A CN 200910259369 A CN200910259369 A CN 200910259369A CN 200910259369 A CN200910259369 A CN 200910259369A CN 101776318 A CN101776318 A CN 101776318A
- Authority
- CN
- China
- Prior art keywords
- compressor
- central microprocessor
- indoor fan
- control command
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides a method for protecting a compressor under high voltage and low voltage conditions, relating to the technology of compressor protection. When a central microprocessor detects that a unit continuously runs for 15 seconds at voltage higher than 260V or lower than 160V, the compressor is stopped, an outdoor fan is stopped, and the on and off of an indoor fan are controlled according to the temperature condition detected by an internal disc. When the central microprocessor detects that the unit continuously runs for 3 minutes at voltage lower than 260V or higher than 160V, the compressor is stopped, the outdoor fan is stopped, and the on and off of the indoor fan are controlled according to the temperature condition detected by the internal disc. The method for protecting the compressor under the high voltage and low voltage conditions solves the problems that the voltage of rural market is not stable, the coil of the compressor is easily burnt, the terminals of the compressor are cracked, fire disasters are caused and the like, and can protect the compressor in time under the high voltage and low voltage conditions.
Description
Technical field
The present invention relates to the compressor protection technology, a kind of specifically high and low voltage conditions method for protecting compressor under.
Background technology
Along with people's The development in society and economy, the raising of people's living standard, air-conditioning again neither luxury goods, entered common people house, particularly last year country Huimin policy and the go to the countryside enforcement of engineering of household electrical appliances, the main realm of sale that the rural market has become each air-conditioning producer to march.Each air-conditioning producer all be utilize existing technical conditions original air-conditioning from primary market to two, three and the fourth market promote.A problem has all been ignored by a lot of air-conditioning producers, and former air-conditioning is to use in the city, and service condition is better relatively, and dust is less, and voltage is more stable, and the quality problems of air-conditioning are also fewer relatively.And there is unstability in the voltage of rural market, and is fluctuated, and service condition is poor, the problem of compressor often occurs burning.
Now a lot of producers have all paid close attention to this problem, generally adopt wide voltage compressor, and the scope of application of wide voltage compressor is generally between 168V～252V.But a lot of rural areas are local because the restriction of condition; voltage is ANOMALOUS VARIATIONS at short notice often; appearance is lower than 160V or is higher than the situation of 260V; the coil temperature of compressor is sharply risen; and the protector of compressor self has little time action, still causes coil burnout or because of big electric current compressor terminal bursts apart, the unit damage; even can cause fire, bring hidden danger for people's lives and properties.
Summary of the invention
At the defective that exists in the prior art; the object of the present invention is to provide a kind of high and low voltage conditions method for protecting compressor under; overcome the rural market spread of voltage; the easy coil burnout of compressor, terminal burst apart; cause problems such as fire, can under high and low voltage conditions, in time protect compressor.
For reaching above purpose, the technical scheme that the present invention takes is:
A kind of high and low voltage conditions method for protecting compressor under is characterized in that:
When the air-conditioning unit under the refrigeration mode condition in the running, when the operating voltage that central microprocessor detects compressor is higher than 260V or is lower than 160V continuous 15 seconds, central microprocessor sends control command, compressor and outdoor fan are shut down, make indoor fan continue operation and shut down after 3 minutes; When the operating voltage that detects compressor when central microprocessor was between 160～260V in continuous 3 minutes, central microprocessor sent control command, and indoor fan, outdoor fan, compressor are opened, and the air-conditioning unit recovers operate as normal;
When the air-conditioning unit under the heating mode condition in the running, when the operating voltage that central microprocessor detects compressor is higher than 260V or is lower than 160V continuous 15 seconds, central microprocessor sends control command, compressor and outdoor fan are shut down, when interior coiler temperature during greater than 38 ℃, central microprocessor makes indoor fan operation, and when interior coiler temperature during smaller or equal to 38 ℃, central microprocessor is shut down indoor fan; When the operating voltage that detects compressor when central microprocessor was between 160～260V in continuous 3 minutes, central microprocessor sends control command, outdoor fan, compressor are opened, when interior coiler temperature is 25～30 ℃, central microprocessor sends control command, and indoor fan is closed; When interior coiler temperature was 30～38 ℃, central microprocessor sent control command, made indoor fan blow low wind; When interior coiler temperature during greater than 38 ℃, central microprocessor sends control command, makes indoor fan blow wind speed setting.
High and low voltage conditions method for protecting compressor under of the present invention has overcome the rural market spread of voltage, and the easy coil burnout of compressor, terminal burst apart, and cause problems such as fire, can in time protect compressor under high and low voltage conditions.
The specific embodiment
High and low voltage conditions method for protecting compressor under of the present invention; be higher than 260V or be lower than the continuous operation of 160V during 15 seconds when central microprocessor detects unit voltage; compressor shutdown; outdoor fan is shut down, and indoor fan is according to the start-stop of the detected temperature conditions of inner disc (interior coiler) control room inner blower.Be lower than 260V or be higher than the continuous operation of 160V in the time of 3 minutes when central microprocessor detects unit voltage, compressor shutdown, outdoor fan is shut down, and indoor fan is according to the start-stop of the detected temperature conditions of inner disc control room inner blower.Specifically:
When the air-conditioning unit under the refrigeration mode condition in the running, when the operating voltage that central microprocessor detects compressor is higher than 260V or is lower than 160V continuous 15 seconds, central microprocessor sends control command, compressor and outdoor fan are shut down, make indoor fan continue operation and shut down after 3 minutes; When the operating voltage that detects compressor when central microprocessor was between 160～260V in continuous 3 minutes, central microprocessor sent control command, and indoor fan, outdoor fan, compressor are opened, and the air-conditioning unit recovers operate as normal;
When the air-conditioning unit under the heating mode condition in the running, when the operating voltage that central microprocessor detects compressor is higher than 260V or is lower than 160V continuous 15 seconds, central microprocessor sends control command, compressor and outdoor fan are shut down, when interior coiler temperature during greater than 38 ℃, central microprocessor makes indoor fan operation, and when interior coiler temperature during smaller or equal to 38 ℃, central microprocessor is shut down indoor fan; When the operating voltage that detects compressor when central microprocessor was between 160～260V in continuous 3 minutes, central microprocessor sends control command, outdoor fan, compressor are opened, when interior coiler temperature is 25～30 ℃, central microprocessor sends control command, and indoor fan is closed; When interior coiler temperature was 30～38 ℃, central microprocessor sent control command, made indoor fan blow low wind; When interior coiler temperature during greater than 38 ℃, central microprocessor sends control command, makes indoor fan blow wind speed setting.
The present invention improves the reliability of unit by protecting unit damage to compressor under the abnormal voltage condition to the control of voltage. After employing was controlled with upper type, the present invention compared with existing control technology, has following significant beneficial effect:
The present invention is provided with a plurality of voltage judgment value and temperature judgment value; control the operation duty of air-conditioning unit by these numerical value; when voltage exceeds the protection value; compressor meeting autoshutdown, compressor is opened automatically when voltage returns to safety value, adopts this control method; guarantee that compressor moves under a reliable voltage conditions; protect compressor, prolonged the service life of air-conditioning, guaranteed the safe operation of air-conditioning. Described central microprocessor is the air-conditioning singlechip controller, and it detects voltage hardware automatically is voltage transformer. Existing air-conditioning unit be need not hardware modification.
Claims (1)
1. high and low voltage conditions method for protecting compressor under is characterized in that:
When the air-conditioning unit under the refrigeration mode condition in the running, when the operating voltage that central microprocessor detects compressor is higher than 260V or is lower than 160V continuous 15 seconds, central microprocessor sends control command, compressor and outdoor fan are shut down, make indoor fan continue operation and shut down after 3 minutes; When the operating voltage that detects compressor when central microprocessor was between 160～260V in continuous 3 minutes, central microprocessor sent control command, and indoor fan, outdoor fan, compressor are opened, and the air-conditioning unit recovers operate as normal;
When the air-conditioning unit under the heating mode condition in the running, when the operating voltage that central microprocessor detects compressor is higher than 260V or is lower than 160V continuous 15 seconds, central microprocessor sends control command, compressor and outdoor fan are shut down, when interior coiler temperature during greater than 38 ℃, central microprocessor makes indoor fan operation, and when interior coiler temperature during smaller or equal to 38 ℃, central microprocessor is shut down indoor fan; When the operating voltage that detects compressor when central microprocessor was between 160～260V in continuous 3 minutes, central microprocessor sends control command, outdoor fan, compressor are opened, when interior coiler temperature is 25～30 ℃, central microprocessor sends control command, and indoor fan is closed; When interior coiler temperature was 30～38 ℃, central microprocessor sent control command, made indoor fan blow low wind; When interior coiler temperature during greater than 38 ℃, central microprocessor sends control command, makes indoor fan blow wind speed setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102593693A CN101776318B (en) | 2009-12-21 | 2009-12-21 | Method for protecting compressor under high voltage and low voltage conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102593693A CN101776318B (en) | 2009-12-21 | 2009-12-21 | Method for protecting compressor under high voltage and low voltage conditions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101776318A true CN101776318A (en) | 2010-07-14 |
| CN101776318B CN101776318B (en) | 2012-08-22 |
Family
ID=42512845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102593693A Active CN101776318B (en) | 2009-12-21 | 2009-12-21 | Method for protecting compressor under high voltage and low voltage conditions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101776318B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764164A (en) * | 2015-04-09 | 2015-07-08 | 宁波奥克斯电气有限公司 | Method for judging whether alternating-current contactor of air conditioner is adhered or not |
| CN110173850A (en) * | 2019-05-10 | 2019-08-27 | 广东美的制冷设备有限公司 | Frequency limit method, apparatus, air conditioner and the electronic equipment of air conditioner |
| CN111237998A (en) * | 2020-01-19 | 2020-06-05 | 广东美的制冷设备有限公司 | Method and device for reducing power consumption of air conditioner, air conditioner and electronic equipment |
| CN111609551A (en) * | 2019-02-25 | 2020-09-01 | 青岛经济技术开发区海尔热水器有限公司 | Heat pump system voltage self-adaptive control method and heat pump system |
| CN112161381A (en) * | 2020-09-07 | 2021-01-01 | 珠海格力电器股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204183U (en) * | 1985-10-05 | 1986-08-27 | 中国科学院广州电子技术研究所 | Automatic protecting device in overvoltage or undervoltage case for compressor of refrigerator |
| CN1111699C (en) * | 1999-01-20 | 2003-06-18 | 三星光州电子株式会社 | Protector for refrigerating compressor and protecting method for refrigerating compressor |
-
2009
- 2009-12-21 CN CN2009102593693A patent/CN101776318B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764164A (en) * | 2015-04-09 | 2015-07-08 | 宁波奥克斯电气有限公司 | Method for judging whether alternating-current contactor of air conditioner is adhered or not |
| CN104764164B (en) * | 2015-04-09 | 2017-08-15 | 宁波奥克斯电气股份有限公司 | Judge the method for the whether viscous connection of A.C. contactor of air conditioner |
| CN111609551A (en) * | 2019-02-25 | 2020-09-01 | 青岛经济技术开发区海尔热水器有限公司 | Heat pump system voltage self-adaptive control method and heat pump system |
| CN110173850A (en) * | 2019-05-10 | 2019-08-27 | 广东美的制冷设备有限公司 | Frequency limit method, apparatus, air conditioner and the electronic equipment of air conditioner |
| CN111237998A (en) * | 2020-01-19 | 2020-06-05 | 广东美的制冷设备有限公司 | Method and device for reducing power consumption of air conditioner, air conditioner and electronic equipment |
| CN112161381A (en) * | 2020-09-07 | 2021-01-01 | 珠海格力电器股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101776318B (en) | 2012-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101776318B (en) | Method for protecting compressor under high voltage and low voltage conditions | |
| CN103901868A (en) | Intelligent controller for gas leakage power supply | |
| CN105698332A (en) | Multi-stage automatic fan speed regulation device and speed regulation method | |
| CN109786090A (en) | Transformer cooling fan control circuit and method | |
| CN103747592A (en) | Intelligent single live wire serial connection touch wireless remote control wall switch | |
| CN106856307A (en) | Nitrogen charging fire extinguishing box-type substation | |
| CN106839334A (en) | A kind of air-conditioner self-protecting device and the air-conditioner with the self-protecting device | |
| CN209659004U (en) | A kind of long-range control cabinet of intelligent network | |
| CN202649730U (en) | Oven control circuit | |
| CN206163354U (en) | Circuit breaker with siren | |
| CN209357603U (en) | Transformer cooling fan control circuit | |
| CN201286214Y (en) | Outdoor synthetic machine cabinet | |
| CN112017847A (en) | Temperature control method and device in transformer room | |
| CN206695503U (en) | The compressor thermal-shutdown circuit of refrigerator | |
| CN210181766U (en) | Household safety monitoring system | |
| CN207069395U (en) | A kind of high temperature-proof power distribution cabinet | |
| CN202084805U (en) | Transformer station automatic ventilation control system based on capacitance breaker | |
| CN210983113U (en) | Device for prolonging service life of combustor | |
| CN205656998U (en) | Modular intelligent control isolator | |
| CN107765562A (en) | A kind of big data smart home water power control method based on habits and customs | |
| CN104106943A (en) | Mattress heating and safety control system | |
| CN204738653U (en) | Power sunroof intelligent control device | |
| CN107678286A (en) | A kind of smart home water power control method | |
| CN203984692U (en) | The automatic protection circuit of household heater | |
| CN203535523U (en) | Illumination dehumidification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170602 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee after: AUX air conditioning Limited by Share Ltd Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo AUX Group. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191216 Address after: 243100 No. 1166, oaks Avenue, Dangtu Economic Development Zone, Ma'anshan City, Anhui Province Patentee after: Anhui Ox Intelligent Electric Co., Ltd. Address before: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee before: AUX air conditioning Limited by Share Ltd |