CN102538149A - Overheat protection control method and overheat protection control device for air conditioner - Google Patents
Overheat protection control method and overheat protection control device for air conditioner Download PDFInfo
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- CN102538149A CN102538149A CN201210058222XA CN201210058222A CN102538149A CN 102538149 A CN102538149 A CN 102538149A CN 201210058222X A CN201210058222X A CN 201210058222XA CN 201210058222 A CN201210058222 A CN 201210058222A CN 102538149 A CN102538149 A CN 102538149A
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- indoor coil
- air
- conditioning
- coil pipe
- protection control
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000004378 air conditioning Methods 0.000 claims description 45
- 239000003990 capacitor Substances 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000013021 overheating Methods 0.000 claims description 7
- 238000005457 optimization Methods 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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Abstract
The invention provides an overheat protection control method and an overheat protection control device for an air conditioner. The overheat protection control method for the air conditioner comprises the following steps of: placing a temperature sensor probe which is connected with an indoor coil pipe temperature detection module between condenser indoor coil pipes to transmit the real-time detected temperature of the indoor coil pipes to a singlechip, and determining according to a preset value by using the singlechip; when the singlechip determines that the temperature of the indoor coil pipes is overhigh, starting an optimized overheat protection control scheme, and when the temperature sensor probe detects that the temperature of the indoor coil pipes is overhigh in a long term, temporarily stopping the air conditioner from operating, not displaying a fault code, and several minutes later, automatically recovering the heating operation of the air conditioner without re-electrification. By using the scheme, the overall performance of the air conditioner can be effectively improved, the energy efficiency of the air conditioner can be improved, and a market complaint rate can be lowered.
Description
Technical field
The present invention relates to the technical field of domestic air conditioner, refer in particular to a kind of air-conditioning control method for over-heating protection and air-conditioning overtemperature protection control device thereof.
Background technology
Air-conditioner moves under heating mode, and the cold-producing medium of HTHP with the room air heating, is realized the effect that air-conditioning heats at indoor evaporative heat loss.Copper pipe (claiming indoor coil again) temperature is higher in heating process because in the evaporimeter causes overtemperature protection for air-conditioning; Indoor coil pipe uprises mainly and caused by following reason: 1, carefully (internal diameter is 0.5～2mm) to the air conditioner capillary pipe caliber; Cause dirty stifled easily; Form bias current, finally cause whole copper pipe temperature to uprise; 2, air-conditioning moved in peak times of power consumption, and voltage is low to cause the indoor fan rotating speed low excessively, and great amount of heat can't normally blow to indoor in the evaporimeter, causes the indoor coil pipe heating; 3, the copper pipe connection is long, and copper pipe inner refrigerant amount increases, and air-conditioning produces great amount of heat in the evaporimeter when heating operation, cause indoor coil pipe to uprise, and influences the normal use of air-conditioning.
The long-time overheated entering overtemperature protection of air-conditioning indoor coil pipe, the basic handling scheme is at present, and air-conditioning is closed all outputs, and is out of service, and indoor demonstration lamp plate shows failure code always; Recover normal system when indoor coil pipe and still can't start automatically, even remote controller starts shooting again and also can't start operation of air conditioner, must re-power start can move.The air-conditioning operation is convenient inadequately like this, and difficulty is met customer need.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of air-conditioning control method for over-heating protection and air-conditioning overtemperature protection control device thereof that can effectively improve the air-conditioning overall performance, improve the air-conditioning efficiency is provided.
For realizing above-mentioned purpose; Its air-conditioning control method for over-heating protection of technical scheme provided by the present invention is: the temperature sensor probe that at first will be connected with the indoor coil pipe detection module is placed between the condenser indoor coil; The indoor coil pipe that is used for detecting in real time is sent to single-chip microcomputer, is judged according to preset value by single-chip microcomputer then; When single-chip microcomputer judges that indoor coil pipe is too high; Overtemperature protection control scheme after start optimizing, to detect indoor coil pipe for a long time too high when temperature sensor probe, the temporary close operation of air conditioner; Do not show failure code; Behind the some minutes, air-conditioning recovers normal heating operation automatically, need not re-power.
Overtemperature protection control scheme after the described optimization; Its concrete control method is following: detecting indoor coil pipe in continuous 30 seconds in the heating process is greater than or equal to 63 ℃; Compressor cuts out; Indoor fan is to set the wind operation, and compressor satisfies the room temperature unlocking condition after 6 minutes, and compressor starts once more; Be greater than or equal to 63 ℃ if occur detecting indoor coil pipe in continuous 30 seconds again, compressor cuts out, and indoor fan so reruns by the wind speed setting operation.
Air-conditioning overtemperature protection control device of the present invention include indoor coil pipe detection module and air-conditioning when overheated to its single-chip microcomputer of controlling; Wherein, described indoor coil pipe detection module includes splicing ear, the electrochemical capacitor of an end ground connection; The golden film resistance of one end ground connection; Diode, current-limiting resistance, the ceramic disc capacitor of an end ground connection; Wherein, Described splicing ear is connected with temperature sensor probe, and one termination of this temperature sensor probe+5V power supply, and its other end is connected with golden film resistance; A pin of this splicing ear connects+the 5V power supply simultaneously; Its another pin respectively with electrochemical capacitor, golden film resistance, current-limiting resistance is corresponding one by one joins, and between golden film resistance and current-limiting resistance, is connected with and is used for clamped diode, and above-mentioned current-limiting resistance is connected with single-chip microcomputer with ceramic disc capacitor respectively again.
The present invention during the air-conditioning overtemperature protection, can produce than air flow when air-conditioning restarts after having adopted such scheme, is used to wash the copper pipe inwall, thereby it is dirty stifled effectively to eliminate capillary; When air-conditioning causes air-conditioning heating capacity and indoor fan rotating speed not to match because of external factor; The temporary close compressor operating no longer shows failure code, treat indoor coil pipe recover normal after; The automatically starting start; Thereby effectively improve the air-conditioning overall performance, improve the air-conditioning efficiency, reduce market the rate of complaints.
Description of drawings
Fig. 1 is the schematic diagram of air-conditioning overtemperature protection control device of the present invention.
The specific embodiment
Below in conjunction with specific embodiment the present invention is described further.
The described air-conditioning control method for over-heating protection of present embodiment is that the temperature sensor probe that at first will be connected with the indoor coil pipe detection module is placed between the condenser indoor coil; The indoor coil pipe that is used for detecting in real time is sent to single-chip microcomputer, is judged according to preset value by single-chip microcomputer then; When single-chip microcomputer judges that indoor coil pipe is too high; Overtemperature protection control scheme after start optimizing, to detect indoor coil pipe for a long time too high when temperature sensor probe, the temporary close operation of air conditioner; Do not show failure code; Behind the some minutes, air-conditioning can recover normal heating operation automatically, need not re-power.Wherein, Overtemperature protection control scheme after the above-mentioned optimization of present embodiment; Its concrete control method is following: detecting indoor coil pipe in continuous 30 seconds in the heating process is greater than or equal to 63 ℃, and compressor cuts out, and indoor fan is to set the wind operation; Compressor satisfies the room temperature unlocking condition after 6 minutes, and press starts once more; Be greater than or equal to 63 ℃ if occur detecting indoor coil pipe in continuous 30 seconds again, compressor cuts out, and indoor fan so reruns by the wind speed setting operation.After adopting said method, during the air-conditioning overtemperature protection,, air-conditioning can produce bigger air-flow when restarting, be used to wash the copper pipe inwall, thereby it is dirty stifled to eliminate capillary effectively, avoids whole copper pipe temperature drift; When if air-conditioning causes air-conditioning heating capacity and indoor fan rotating speed not to match because of external factor; Single-chip microcomputer can temporary close compressor operating, indoor demonstration lamp plate no longer shows failure code, treat indoor coil pipe recover normal after; Air-conditioning starts start automatically; Thereby improve the air-conditioning overall performance effectively, improve the air-conditioning efficiency, reduce market the rate of complaints.
Shown in accompanying drawing 1, the described air-conditioning overtemperature protection of present embodiment control device include indoor coil pipe detection module 1 and air-conditioning when overheated to its single-chip microcomputer of controlling 2, wherein; Described indoor coil pipe detection module 1 includes splicing ear CN1; The electrochemical capacitor E1 of one end ground connection, the golden film resistance R2 of an end ground connection, diode D1, D2; Current-limiting resistance R1, the ceramic disc capacitor C1 of an end ground connection; Wherein, The pin of said splicing ear CN1 connects+the 5V power supply; Its another pin respectively with electrochemical capacitor E1, golden film resistance R2, current-limiting resistance R1 is corresponding one by one joins, and between golden film resistance R2 and current-limiting resistance R1, is connected with and is used for clamped diode D1, D2, and above-mentioned current-limiting resistance R1 is connected with single-chip microcomputer with ceramic disc capacitor C1 respectively again; Simultaneously; The above-mentioned splicing ear CN1 of present embodiment is connected with temperature sensor probe, and one termination of this temperature sensor probe+5V power supply, and its other end is connected with golden film resistance R2; B point voltage in the accompanying drawing 1 is 5 * R2/ (R2+RX) like this, and RX changes with the detected temperature value of temperature sensor probe.During work, single-chip microcomputer is through detecting the partial pressure value collecting temperature of B point R2 and RX, and B point signal is delivered to single-chip microcomputer through the point of the A in the accompanying drawing 1 behind current-limiting resistance R1.Wherein, the temperature signal that above-mentioned B point collects, clamped through diode D1, D2, can eliminate the clutter that is higher than 5V or is lower than 0V; Electrochemical capacitor E1, ceramic disc capacitor C1 strobe, and its objective is in order to guarantee the stable of temperature acquisition signal.
The embodiment of the above only is the present invention's preferred embodiment, is not to limit practical range of the present invention with this, so the variation that all shapes according to the present invention, principle are done all should be encompassed in protection scope of the present invention.
Claims (3)
1. air-conditioning control method for over-heating protection; It is characterized in that: the temperature sensor probe that at first will be connected with the indoor coil pipe detection module is placed between the condenser indoor coil; The indoor coil pipe that is used for detecting in real time is sent to single-chip microcomputer, is judged according to preset value by single-chip microcomputer then; When single-chip microcomputer judges that indoor coil pipe is too high; Overtemperature protection control scheme after start optimizing, to detect indoor coil pipe for a long time too high when temperature sensor probe, the temporary close operation of air conditioner; Do not show failure code; Behind the some minutes, air-conditioning recovers normal heating operation automatically, need not re-power.
2. a kind of air-conditioning control method for over-heating protection according to claim 1; It is characterized in that: the overtemperature protection control scheme after the described optimization; Its concrete control method is following: detecting indoor coil pipe in continuous 30 seconds in the heating process is greater than or equal to 63 ℃, and compressor cuts out, and indoor fan is to set the wind operation; Compressor satisfies the room temperature unlocking condition after 6 minutes, and compressor starts once more; Be greater than or equal to 63 ℃ if occur detecting indoor coil pipe in continuous 30 seconds again, compressor cuts out, and indoor fan so reruns by the wind speed setting operation.
3. control method according to claim 1 is carried out overtemperature protection to air-conditioning air-conditioning overtemperature protection control device; It is characterized in that: described air-conditioning overtemperature protection control device include indoor coil pipe detection module (1) and air-conditioning when overheated to its single-chip microcomputer of controlling (2); Wherein, described indoor coil pipe detection module (1) includes splicing ear (CN1), the electrochemical capacitor of an end ground connection (E1); The golden film resistance (R2) of one end ground connection; Diode (D1, D2), current-limiting resistance (R1), the ceramic disc capacitor of an end ground connection (C1); Wherein, Described splicing ear (CN1) is connected with temperature sensor probe; And one termination of this temperature sensor probe+5V power supply; Its other end is connected with golden film resistance (R2), and a pin of this splicing ear (CN1) connects+the 5V power supply simultaneously, its another pin respectively with electrochemical capacitor (E1), golden film resistance (R2), current-limiting resistance (R1) is corresponding one by one joins; And between golden film resistance (R2) and current-limiting resistance (R1), be connected with and be used for clamped diode (D1, D2), and above-mentioned current-limiting resistance (R1) is connected with single-chip microcomputer (2) with ceramic disc capacitor (C1) respectively again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058222.XA CN102538149B (en) | 2012-03-07 | 2012-03-07 | Overheat protection control device for air conditioner by means of overheat protection control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058222.XA CN102538149B (en) | 2012-03-07 | 2012-03-07 | Overheat protection control device for air conditioner by means of overheat protection control method |
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| CN102538149A true CN102538149A (en) | 2012-07-04 |
| CN102538149B CN102538149B (en) | 2015-05-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613606A (en) * | 2015-02-12 | 2015-05-13 | 珠海格力电器股份有限公司 | Air conditioner operation detection method and device and air conditioner |
| CN105180359A (en) * | 2015-09-02 | 2015-12-23 | 珠海格力电器股份有限公司 | High-temperature-prevention control method and device and air conditioner |
| CN110173820A (en) * | 2019-05-21 | 2019-08-27 | 四川虹美智能科技有限公司 | A kind of air-conditioner defrosting control method and device |
| CN113983642A (en) * | 2021-11-29 | 2022-01-28 | 宁波奥克斯电气股份有限公司 | Air conditioner control method under temperature control fault condition and air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469927A (en) * | 2007-12-24 | 2009-07-01 | 苏州三星电子有限公司 | Control method for compressor stop time minimization in heating excess load protection action |
| CN102364258A (en) * | 2011-09-23 | 2012-02-29 | 宁波奥克斯电气有限公司 | Protection method for preventing superheat during heating of multi-connection air conditioning unit |
-
2012
- 2012-03-07 CN CN201210058222.XA patent/CN102538149B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469927A (en) * | 2007-12-24 | 2009-07-01 | 苏州三星电子有限公司 | Control method for compressor stop time minimization in heating excess load protection action |
| CN102364258A (en) * | 2011-09-23 | 2012-02-29 | 宁波奥克斯电气有限公司 | Protection method for preventing superheat during heating of multi-connection air conditioning unit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613606A (en) * | 2015-02-12 | 2015-05-13 | 珠海格力电器股份有限公司 | Air conditioner operation detection method and device and air conditioner |
| CN104613606B (en) * | 2015-02-12 | 2017-10-27 | 珠海格力电器股份有限公司 | Air conditioner operation detection method and device and air conditioner |
| CN105180359A (en) * | 2015-09-02 | 2015-12-23 | 珠海格力电器股份有限公司 | High-temperature-prevention control method and device and air conditioner |
| CN105180359B (en) * | 2015-09-02 | 2018-04-20 | 珠海格力电器股份有限公司 | High-temperature-prevention control method and device and air conditioner |
| CN110173820A (en) * | 2019-05-21 | 2019-08-27 | 四川虹美智能科技有限公司 | A kind of air-conditioner defrosting control method and device |
| CN110173820B (en) * | 2019-05-21 | 2020-11-10 | 四川虹美智能科技有限公司 | Air conditioner defrosting control method and device |
| CN113983642A (en) * | 2021-11-29 | 2022-01-28 | 宁波奥克斯电气股份有限公司 | Air conditioner control method under temperature control fault condition and air conditioner |
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| CN102538149B (en) | 2015-05-27 |
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Effective date of registration: 20240326 Granted publication date: 20150527 |