CN110926075A - Heat pump fault self-diagnosis system - Google Patents
Heat pump fault self-diagnosis system Download PDFInfo
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- CN110926075A CN110926075A CN202010012007.0A CN202010012007A CN110926075A CN 110926075 A CN110926075 A CN 110926075A CN 202010012007 A CN202010012007 A CN 202010012007A CN 110926075 A CN110926075 A CN 110926075A
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- 238000004092 self-diagnosis Methods 0.000 title claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims abstract description 42
- 238000003745 diagnosis Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
本发明涉及一种热泵故障自诊断系统，其特点是包括诊断芯片、复位芯片、第一电阻、第二电阻、第一电容、第二电容、第三电容、谐振器、三极管、继电器开关、报警器、蓄电池、第一风机电流信号采集电路、第二风机电流信号采集电路、阀门电流信号采集电路、水泵电流信号采集电路及压缩机电流信号采集电路。其优点为:采用芯片快速实现热泵故障的自诊断，方便用户及设备维护人员能第一时间知道故障后及时处理。
The invention relates to a heat pump fault self-diagnosis system, which is characterized by including a diagnosis chip, a reset chip, a first resistor, a second resistor, a first capacitor, a second capacitor, a third capacitor, a resonator, a triode, a relay switch, an alarm The device, the battery, the first fan current signal acquisition circuit, the second fan current signal acquisition circuit, the valve current signal acquisition circuit, the water pump current signal acquisition circuit and the compressor current signal acquisition circuit. The advantages are: the chip is used to quickly realize the self-diagnosis of the heat pump fault, which is convenient for users and equipment maintenance personnel to know the fault at the first time and deal with it in time.
Description
Technical Field
The invention relates to a heat pump fault self-diagnosis system.
Background
The executing devices of the existing heat pump comprise a compressor, a four-way valve, a fan, a water pump, a valve and the like. When the heat pump operates, if the executing device is damaged, the heat pump can be in operation failure, and the single chip microcomputer control circuit board can also be in electric control failure due to the damage of a power supply circuit or a relay circuit and the like. The existing fault self-diagnosis is realized by using a complex mathematical algorithm, such as big data or an expert system, and the detection method needs a computer with high operation speed, large data processing capacity and strong floating point operation and matrix operation, and cannot be really applied to small and medium-sized heat pump products.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a heat pump fault self-diagnosis system, which adopts a chip to quickly realize the self-diagnosis of the heat pump fault and is convenient for users and equipment maintenance personnel to know the fault at the first time and then process the fault in time.
In order to achieve the purpose, the invention is realized in such a way that the invention is a heat pump fault self-diagnosis system, which comprises a diagnosis chip, a reset chip, a first resistor, a second resistor, a first capacitor, a second capacitor, a third capacitor, a resonator, a triode, a relay switch, an alarm, a storage battery, a first fan current signal acquisition circuit, a second fan current signal acquisition circuit, a valve current signal acquisition circuit, a water pump current signal acquisition circuit and a compressor current signal acquisition circuit; pin 1 of the diagnosis chip is electrically connected with the cathode of the storage battery, the anode of the storage battery is electrically connected with pin 15 of the diagnosis chip, pin 2 of the diagnosis chip is respectively electrically connected with one end of the resonator and one end of the first capacitor, the other end of the first capacitor is respectively electrically connected with an external 5V power supply and one end of the second capacitor, and the other end of the second capacitor and the other end of the resonator are electrically connected with pin 3 of the diagnosis chip; the 4 pins of the diagnosis chip are respectively and electrically connected with one end of a first resistor, the 1 pin of a reset chip and one end of a third capacitor, the 2 pins of the reset chip are respectively and electrically connected with the other end of the first resistor and an external 5V power supply, and the 3 pins of the reset chip and the other end of the third capacitor are grounded; the 7 pin of the diagnosis chip is electrically connected with the VSS pin of the single chip microcomputer in the heat pump, the 8 pin of the diagnosis chip is electrically connected with the VCC pin of the single chip microcomputer in the heat pump, the 9 pin of the diagnosis chip is electrically connected with the P83 pin of the single chip microcomputer in the heat pump, the 10 pin of the diagnosis chip is electrically connected with the P90 pin of the single chip microcomputer in the heat pump, the 11 pin of the diagnosis chip is electrically connected with the P91 pin of the single chip microcomputer in the heat pump, the 12 pin of the diagnosis chip is electrically connected with the P92 pin of the single chip microcomputer in the heat pump, the 13 pin of the diagnosis chip is electrically connected with the P93 pin of the single chip microcomputer in the heat pump, the 14 pin of the diagnosis chip is electrically connected with one end of a second resistor, the other end of the second resistor is electrically connected with the base electrode of a triode, the emitting electrode of the triode is grounded, the other end of the alarm is grounded; thereby the 17 feet of diagnosis chip carry out mutual inductance through the electric current of first fan in first fan current signal acquisition circuit and the heat pump and gather the signal, thereby 18 feet of diagnosis chip carry out mutual inductance through the electric current of second fan in second fan current signal acquisition circuit and the heat pump and gather the signal, thereby 19 feet of diagnosis chip carry out mutual inductance through the electric current of valve current signal acquisition circuit and the valve in the heat pump and gather the signal, thereby 20 feet of diagnosis chip carry out mutual inductance through the electric current of water pump fan current signal acquisition circuit and the water pump in the heat pump and gather the signal, thereby 21 feet of diagnosis chip carry out mutual inductance through the electric current of compressor current signal acquisition circuit and the compressor in the heat pump and gather the signal.
In the technical scheme, the first fan current signal acquisition circuit comprises a fourth capacitor, a third resistor and a four-pin rectifier bridge; the 17 pins of the diagnosis chip are respectively and electrically connected with one end of a fourth capacitor, one end of a third resistor and the B3 end of a four-pin rectifier bridge, the other end of the fourth capacitor, the other end of the third resistor and the D4 end of the four-pin rectifier bridge are grounded, and the A1 end of the four-pin rectifier bridge is electrically connected with the A2 end of the four-pin rectifier bridge after being mutually inducted by first fan current of the heat pump.
In the technical scheme, the circuit structures of the second fan current signal acquisition circuit, the valve current signal acquisition circuit, the water pump current signal acquisition circuit and the compressor current signal acquisition circuit are the same as the circuit structure of the first fan current signal acquisition circuit.
In the technical scheme, the alarm is an audible and visual alarm.
In the technical scheme, the type of the diagnosis chip is Saiyuan SC91F 73.
In the present embodiment, the model number of the reset chip IC2 is 34064.
In the technical scheme, the type of the heat pump single chip microcomputer is UPD 75028.
Compared with the prior art, the invention has the advantages that: the self-diagnosis of the heat pump fault is quickly realized by adopting the chip, so that a user and equipment maintenance personnel can know the fault at the first time and then process the fault in time.
Drawings
FIG. 1 is a schematic diagram of the circuit of the present invention;
fig. 2 is a schematic circuit diagram of a chip in the heat pump of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 2, the heat pump fault self-diagnosis system includes a diagnosis chip IC1, a reset chip IC2, a first resistor R1, a second resistor R2, a first capacitor C1, a second capacitor C2, a third capacitor C3, a resonator X, a triode Q, a relay switch J, an alarm 1, a storage battery E, a first fan current signal acquisition circuit 3, a second fan current signal acquisition circuit 4, a valve current signal acquisition circuit 5, a water pump current signal acquisition circuit 6, and a compressor current signal acquisition circuit 7; a pin 1 of the diagnostic chip IC1 is electrically connected with a negative electrode of a storage battery E, a positive electrode of the storage battery E is electrically connected with a pin 15 of the diagnostic chip IC1, a pin 2 of the diagnostic chip IC1 is electrically connected with one end of a resonator X and one end of a first capacitor C1 respectively, the other end of the first capacitor C1 is electrically connected with an external 5V power supply and one end of a second capacitor C2 respectively, and the other end of the second capacitor C2 and the other end of the resonator X are electrically connected with a pin 3 of the diagnostic chip IC 1; the 4 pins of the diagnosis chip IC1 are respectively and electrically connected with one end of a first resistor R1, the 1 pin of a reset chip IC2 and one end of a third capacitor C3, the 2 pins of the reset chip IC2 are respectively and electrically connected with the other end of the first resistor R1 and an external 5V power supply, and the 3 pins of the reset chip IC2 and the other end of the third capacitor C3 are grounded; the pin 7 of the diagnosis chip IC1 is electrically connected with the VSS pin of the MCU in the heat pump, the pin 8 of the diagnosis chip IC1 is electrically connected with the VCC pin of the MCU in the heat pump, the pin 9 of the diagnosis chip IC1 is electrically connected with the pin P83 of the MCU in the heat pump, the pin 10 of the diagnosis chip IC1 is electrically connected with the pin P90 of the MCU in the heat pump, the pin 11 of the diagnosis chip IC1 is electrically connected with the pin P91 of the MCU in the heat pump, the pin 12 of the diagnosis chip IC1 is electrically connected with the pin P92 of the MCU in the heat pump, the pin 13 of the diagnosis chip IC1 is electrically connected with the pin P93 of the MCU in the heat pump, the pin 14 of the diagnosis chip IC1 is electrically connected with one end of a second resistor R2, the other end of the second resistor R2 is electrically connected with the base of a triode Q, the emitter of the triode Q is grounded, the collector of the triode Q is electrically connected with one end, one end of the alarm 1 is electrically connected with the positive electrode of the storage battery through a relay switch J-1, and the other end of the alarm 1 is grounded; the relay J drives the relay switch J-1 to be closed so as to be communicated, and the relay switch J-1 is a normally open breakpoint; the 17 feet of the diagnosis chip IC1 carry out mutual inductance with the current of the first fan in the heat pump through the first fan current signal acquisition circuit 3 so as to acquire signals, the 18 feet of the diagnosis chip IC1 carry out mutual inductance with the current of the second fan in the heat pump through the second fan current signal acquisition circuit 4 so as to acquire signals, the 19 feet of the diagnosis chip IC1 carry out mutual inductance with the current of the valve in the heat pump through the valve current signal acquisition circuit 5 so as to acquire signals, the 20 feet of the diagnosis chip IC1 carry out mutual inductance with the current of the water pump in the heat pump through the water pump fan current signal acquisition circuit 6 so as to acquire signals, and the 21 feet of the diagnosis chip IC1 carry out mutual inductance with the current of the compressor in the heat pump through the compressor current signal acquisition circuit 7 so as to acquire. The system adopts two ways for judging the faults of the product circuit board: firstly, acquiring a control output signal of a heat pump single chip microcomputer MCU, simultaneously acquiring loop current of a first fan or a second fan or a valve or a water pump or a compressor, and comparing whether the current value is normal or not so as to judge whether the operation and the on-off of the first fan or the second fan or the valve or the water pump or the compressor are according to the logic of the single chip microcomputer MCU; secondly, collecting the power supply voltage of the MCU of the singlechip, and judging whether the power supply of the heat pump circuit board is normal or not, thereby judging whether the product is accidentally powered off or not; when the diagnosis chip IC1 judges that the heat pump has a fault, an alarm is given out through the alarm 1. The capacitance of the first capacitor C1 and the second capacitor C2 is 20pF, the resonator is 4.19MHZ, the capacitance of the fourth capacitor is 100nF, and the resistance of the third resistor is 100 Ω.
In this embodiment, the first fan current signal collecting circuit 3 includes a fourth capacitor C4, a third resistor R3, and a four-pin rectifier bridge; the 17 feet of the diagnosis chip IC1 are respectively electrically connected with one end of a fourth capacitor C4, one end of a third resistor R3 and the B3 end of a four-foot rectifier bridge, the other end of the fourth capacitor C4, the other end of the third resistor R3 and the D4 end of the four-foot rectifier bridge are grounded, and the A1 end of the four-foot rectifier bridge is electrically connected with the A2 end of the four-foot rectifier bridge after being mutually inducted with the first fan current of the heat pump.
In this embodiment, the circuit structures of the second fan current signal collecting circuit 4, the valve current signal collecting circuit 5, the water pump current signal collecting circuit 6 and the compressor current signal collecting circuit 7 are the same as the circuit structure of the first fan current signal collecting circuit 3.
In the present embodiment, the alarm 1 is an audible and visual alarm.
In this embodiment, the model of the diagnostic chip IC1 is seiyuan SC91F 73.
In this embodiment, the model number of the reset chip IC2 is 34064.
In this embodiment, the model of the heat pump single chip microcomputer MCU is UPD 75028.
The embodiments of the present invention are described in detail above with reference to the drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010012007.0A CN110926075B (en) | 2020-01-07 | 2020-01-07 | Heat pump circuit board fault self-diagnosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010012007.0A CN110926075B (en) | 2020-01-07 | 2020-01-07 | Heat pump circuit board fault self-diagnosis system |
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| Publication Number | Publication Date |
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| CN110926075A true CN110926075A (en) | 2020-03-27 |
| CN110926075B CN110926075B (en) | 2024-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010012007.0A Active CN110926075B (en) | 2020-01-07 | 2020-01-07 | Heat pump circuit board fault self-diagnosis system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689105Y (en) * | 2004-01-12 | 2005-03-30 | 广东新的科技集团有限公司 | Control system for outdoor unit of air cooling tubular air conditioner with several indoor units |
| CN2781348Y (en) * | 2005-04-16 | 2006-05-17 | 顺德职业技术学院 | Diagnostic training equipment for failure of AC frequence converter heat pump split air conditioner |
| CN103236679A (en) * | 2013-05-16 | 2013-08-07 | 天津市百利电气有限公司 | Electronic type backup protection device for AC (alternating current) circuit breaker |
| CN104638600A (en) * | 2013-11-06 | 2015-05-20 | 成都步速者科技有限责任公司 | Power-off protection circuit for projectors |
| WO2016201911A1 (en) * | 2015-06-15 | 2016-12-22 | 深圳葆威道科技有限公司 | Temperature control system for electronic cigarette heating member |
| CN109489275A (en) * | 2018-11-13 | 2019-03-19 | 北海华红信息科技有限公司 | A kind of solar water heater based on Bluetooth communication control |
| CN211782126U (en) * | 2020-01-07 | 2020-10-27 | 顺德职业技术学院 | Heat pump circuit board fault self-diagnosis system |
-
2020
- 2020-01-07 CN CN202010012007.0A patent/CN110926075B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689105Y (en) * | 2004-01-12 | 2005-03-30 | 广东新的科技集团有限公司 | Control system for outdoor unit of air cooling tubular air conditioner with several indoor units |
| CN2781348Y (en) * | 2005-04-16 | 2006-05-17 | 顺德职业技术学院 | Diagnostic training equipment for failure of AC frequence converter heat pump split air conditioner |
| CN103236679A (en) * | 2013-05-16 | 2013-08-07 | 天津市百利电气有限公司 | Electronic type backup protection device for AC (alternating current) circuit breaker |
| CN104638600A (en) * | 2013-11-06 | 2015-05-20 | 成都步速者科技有限责任公司 | Power-off protection circuit for projectors |
| WO2016201911A1 (en) * | 2015-06-15 | 2016-12-22 | 深圳葆威道科技有限公司 | Temperature control system for electronic cigarette heating member |
| CN109489275A (en) * | 2018-11-13 | 2019-03-19 | 北海华红信息科技有限公司 | A kind of solar water heater based on Bluetooth communication control |
| CN211782126U (en) * | 2020-01-07 | 2020-10-27 | 顺德职业技术学院 | Heat pump circuit board fault self-diagnosis system |
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| CN110926075B (en) | 2024-08-09 |
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