CN103036205A - Electronic protector for compressor - Google Patents
Electronic protector for compressor Download PDFInfo
- Publication number
- CN103036205A CN103036205A CN2011103012825A CN201110301282A CN103036205A CN 103036205 A CN103036205 A CN 103036205A CN 2011103012825 A CN2011103012825 A CN 2011103012825A CN 201110301282 A CN201110301282 A CN 201110301282A CN 103036205 A CN103036205 A CN 103036205A
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- China
- Prior art keywords
- compressor
- control chip
- electronic protector
- transformer
- temperature sensor
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- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to an electronic protector for a compressor. The electronic protector comprises a control chip, a current transformer, a temperature sensor, a relay, and a transformer, wherein input ends of the current transformer and the temperature sensor are connected with the compressor, the output ends of the current transformer and the temperature sensor are connected with an input end of the control chip, a power supply end of the control chip is connected with the transformer, an output end of the control chip is connected with the compressor through the relay. Besides, the transformer is connected with an external power source so as to enable voltages of the external power source to be converted into voltages needed by the electronic protector for supplying power for the control chip. The current transformer and the temperature sensor respectively collect currents and temperatures and then enable the currents and the temperatures to be transmitted to the control chip, on-and-off conditions of the relay are controlled through the control chip, and therefore the compressor is protected. Compared with the prior art, the electronic protector for the compressor can conduct the safety protection to the compressor in various working conditions and directs at three-phrase machine types to conduct open-phase and opposite-phase protection.
Description
Technical field
The present invention relates to a kind of compressor protector, especially relate to a kind of compressor electronic protector.
Background technology
The most protector of existing compressor all is the mechanical type protection, mainly is made of " contact ", " three sheet metals " and parts such as " electrical heating wires ", is limited by the characteristic of material itself, and protection has limitation.Present compressor environment for use also is tending towards variation, and under the different operating modes, the running status of compressor reality is also different, with existing mechanical type protector protection, the unavoidable region of no pressure that protection occurs.Because the protection of compressor and air-conditioning system separates, so also increase the cost of protective device in addition, therefore be necessary to invent a protector that can under any operating mode, can both effectively protect compressor operating.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of compressor electronic protector for the defective that overcomes above-mentioned prior art existence; this electronic protector all can carry out safeguard protection to compressor under various operating modes, and can carry out phase shortage and anti-phase protection for the three-phase machine.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of compressor electronic protector; this electronic protector comprises control chip, current transformer, temperature sensor, relay and transformer; described current transformer is connected input and is connected compressor with temperature sensor; output connects the input of control chip; the energy supply end connection transformer of described control chip, the output of control chip is connected with compressor by relay.
Described current transformer is provided with three, connects respectively the three-phase circuit of compressor, can for detection of three-phase current, can also protect when phase shortage and anti-phase running.
Described temperature sensor is NTC (Negative Temperature Coefficient, negative temperature coefficient) thermistor.
Described control chip is provided with time delay module.
Transformer connects external power source; be used for the voltage transitions of external power source is become the required voltage of electronic protector; be the control chip power supply, current transformer and temperature sensor gather respectively electric current and the temperature of compressor, and electric current and temperature are transferred to control chip.When the electric current of compressor or temperature surpassed preset value, the control chip control relay disconnected after through time-delay, thus the protection compressor; When the temperature of compressor returned in the preset value, the control chip control relay was connected after through time-delay, recovered the compressor normal operation.
Compared with prior art, the present invention is in the compressor operating process, and electric current and temperature that can the Real-time Measuring capacity compressor can both be effectively protected so that compressor moves under any operating mode.For the Three-phase electronic protector, can also increase the defencive function of phase shortage and anti-phase running.Because the signal of electronic protector can link to each other with air-conditioning; therefore the protection unification of compressor and air-conditioning can be combined; both can reduce the cost of air-conditioning; the running status of compressor can be shown at air-conditioning panel again; and when protector moves, the reason of its action can be shown, make things convenient for the user to know the state of compressor operating.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
As shown in Figure 1; a kind of compressor electronic protector; this electronic protector is connected with compressor 6; comprise control chip 1, temperature sensor 2, current transformer 3, relay 4 and transformer 5; control chip 1 is connected with temperature sensor 2, current transformer 3, relay 4 and transformer 5 respectively; temperature sensor 2 adopts the NTC thermistor, can be by the reacting condition variations in temperature of resistance value.Current transformer 3 is provided with three, connects respectively the three-phase circuit of compressor 6, for detection of three-phase current, can make electronic protector possess phase shortage and anti-phase defencive function.Transformer 5 connects external power source, is used for the voltage transitions of external power source is become the required voltage of electronic protector, is control chip 1 power supply.When compressor 6 power on for the first time when start when starting (or); electric current has the increase of moment; for guaranteeing compressor 6 normal operations; control chip 1 has the start delay protection function; namely within the short time that compressor 6 starts; compressor 6 is not transshipped judgement, whether the electric current that begins to judge compressor 6 after several seconds of delaying time transships and protects.
Control chip 1 is provided with time delay module; can set corresponding amount of delay according to different situations; temperature and the electric current of temperature sensor 2 summation current transformers 3 Real-time Collection compressors 6; and it is transferred to control chip 1; at any time, as long as following any one situation occurs, control chip 1 will disconnect relay 4; compressor 6 is quit work, thereby reaches the purpose of protection compressor 6:
1, when the mean value of compressor 6 three-phase currents during greater than 1.2 times of rated current, behind the control chip 1 time-delay 50s, control relay 4 disconnects;
2, when the mean value of compressor 6 three-phase currents during greater than 1.5 times of rated current, behind the control chip 1 time-delay 25s, control relay 4 disconnects;
3, when the mean value of compressor 6 three-phase currents during greater than 1.8 times of rated current, behind the control chip 1 time-delay 12s, control relay 4 disconnects;
4, when the mean value of compressor 6 three-phase currents during greater than 2 times of rated current, behind the control chip 1 time-delay 6s, control relay 4 disconnects;
5, when the mean value of compressor 6 three-phase currents greater than 3 times of rated current and when above, behind the control chip 1 time-delay 2s, control relay 4 disconnects;
6, when the temperature value of compressor 6 during greater than preset temperature, behind the control chip 1 time-delay 10s, control relay 4 disconnects.
When compressor 6 is in guard mode, namely in the out-of-work situation, control chip 1 is still by temperature sensor 2 monitoring compressors 6 internal temperatures; when temperature during less than preset value; behind the control chip 1 time-delay 20s, control relay 4 conductings are reworked compressor 6.
The present invention is in the compressor operating process, and electric current and temperature that can the Real-time Measuring capacity compressor can both be effectively protected so that compressor moves under any operating mode.Because the signal of electronic protector can link to each other with air-conditioning; therefore the protection unification of compressor and air-conditioning can be combined; both can reduce the cost of air-conditioning; the running status of compressor can be shown at air-conditioning panel again; and when protector moves, the reason of its action can be shown, make things convenient for the user to know the state of compressor operating.
Claims (4)
1. compressor electronic protector; it is characterized in that; this electronic protector comprises control chip, current transformer, temperature sensor, relay and transformer; described current transformer is connected input and is connected compressor with temperature sensor; output connects the input of control chip; the energy supply end connection transformer of described control chip, the output of control chip is connected with compressor by relay.
2. a kind of compressor electronic protector according to claim 1 is characterized in that, described current transformer is provided with three, connects respectively the three-phase circuit of compressor.
3. a kind of compressor electronic protector according to claim 1 is characterized in that, described temperature sensor is the NTC thermistor.
4. a kind of compressor electronic protector according to claim 1 is characterized in that, described control chip is provided with time delay module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110301282.5A CN103036205B (en) | 2011-09-29 | 2011-09-29 | A kind of compressor electronic protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110301282.5A CN103036205B (en) | 2011-09-29 | 2011-09-29 | A kind of compressor electronic protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103036205A true CN103036205A (en) | 2013-04-10 |
| CN103036205B CN103036205B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110301282.5A Active CN103036205B (en) | 2011-09-29 | 2011-09-29 | A kind of compressor electronic protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103036205B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100833A (en) * | 2017-05-24 | 2017-08-29 | 泰州年糕房车技术有限公司 | A kind of compressor protector |
| CN110529371A (en) * | 2019-08-19 | 2019-12-03 | 珠海凌达压缩机有限公司 | Protection device and method for compressor and compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101005265A (en) * | 2006-01-25 | 2007-07-25 | 应章强 | Intelligent powersaving device for AC motor |
| CN101067508A (en) * | 2007-06-06 | 2007-11-07 | 中国扬子集团滁州扬子空调器有限公司 | Low-voltage working fixed speed air conditioner and control method thereof |
| CN101216714A (en) * | 2007-12-26 | 2008-07-09 | 苏州新亚科技有限公司 | Real time intelligent temperature controller |
| CN201953628U (en) * | 2007-11-02 | 2011-08-31 | 艾默生环境优化技术有限公司 | Sensor module for compressor |
-
2011
- 2011-09-29 CN CN201110301282.5A patent/CN103036205B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101005265A (en) * | 2006-01-25 | 2007-07-25 | 应章强 | Intelligent powersaving device for AC motor |
| CN101067508A (en) * | 2007-06-06 | 2007-11-07 | 中国扬子集团滁州扬子空调器有限公司 | Low-voltage working fixed speed air conditioner and control method thereof |
| CN201953628U (en) * | 2007-11-02 | 2011-08-31 | 艾默生环境优化技术有限公司 | Sensor module for compressor |
| CN101216714A (en) * | 2007-12-26 | 2008-07-09 | 苏州新亚科技有限公司 | Real time intelligent temperature controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100833A (en) * | 2017-05-24 | 2017-08-29 | 泰州年糕房车技术有限公司 | A kind of compressor protector |
| CN110529371A (en) * | 2019-08-19 | 2019-12-03 | 珠海凌达压缩机有限公司 | Protection device and method for compressor and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103036205B (en) | 2016-08-24 |
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| 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 | ||
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| CP03 | Change of name, title or address |
Address after: 201206 Shanghai China (Shanghai) free trade test area, Yun Qiao Road No. 1051 Patentee after: Shanghai Haili Electrical Appliance Co. Ltd. Address before: 201206, Pudong New Area Pudong Jinqiao Export Processing Zone, No. 1051, Bridge Road, Shanghai Patentee before: Rili Electric Appliance Co., Ltd., Shanghai |
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| CP03 | Change of name, title or address |