CN107388632A - Control method, control system and the air source heat pump of air source heat pump - Google Patents
Control method, control system and the air source heat pump of air source heat pump Download PDFInfo
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- CN107388632A CN107388632A CN201710612950.3A CN201710612950A CN107388632A CN 107388632 A CN107388632 A CN 107388632A CN 201710612950 A CN201710612950 A CN 201710612950A CN 107388632 A CN107388632 A CN 107388632A
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- heat pump
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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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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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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- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes a kind of control method of air source heat pump, the control system of air source heat pump, air source heat pump.Wherein air source heat pump includes outdoor unit, and outdoor unit includes compressor, blower fan, heat exchanger, and the control method of air source heat pump includes：When receiving compressor start and/or shutdown command, the operation power and/or running current of blower fan are obtained；Judge whether run power and/or running current meets preparatory condition；When running power and/or running current meets preparatory condition, then the alerting signal of cleaning heat exchanger is sent.The present invention realizes the problem of reminding user and producer's after-sale service cleaning outdoor unit finned heat exchanger and excessive overhaul plan outdoor fan load in time, it ensure that the good heat transfer effect of outdoor unit heat exchanger, avoid the electric appliance circuits overheat triggered because motor load is excessive and damage economic loss caused by motor problem, improve product quality.
Description
Technical field
The present invention relates to air source heat pump technical field, in particular to a kind of control method of air source heat pump, sky
The control system of air supply heat pump, air source heat pump.
Background technology
For air-cooled heat pump Hot water units (especially northern coal changes the net for air-source heat pump units in electricity), because outdoor unit is installed
Surrounding environment it is lack of standardization and cause that finned heat exchanger surrounding radiating effect is bad to cause electromotor high-temperature to generate heat, along with outdoor unit
Heat exchanger finned heat exchanger surface is accumulated excessive dust and is caused outdoor fan delivery too small without cleaning for a long time, also can
Cause outdoor unit motor load excessive.Especially in the north because haze pollution seriously causes winter outdoor unit in each defrost knot very much
Shu Hou, under the comprehensive function of hot gas and serious haze, finned heat exchanger superficial dust is more serious, and accumulating gradually to cause
The ventilation of the finned heat exchanger of outdoor unit diminishes, ultimately result in the motor feels hot damage excessive with motor load, or even some is drawn
Rise outdoor unit motor circuit heating it is on fire, simultaneously as air outlet mesh of outdoor unit dust stratification seriously also influence outdoor unit outer perception.
Therefore, how to solve when the finned heat exchanger surface area of the outdoor unit of air source heat pump accumulates excessive dust, and
When the reason for reminding user or producer to clean heat exchanger and excessive maintenance motor load after sale, turn into urgent problem to be solved.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art or correlation technique.
Therefore, one side of the invention is to propose a kind of control method of air source heat pump.
The second aspect of the invention is to propose a kind of control system of air source heat pump.
The third aspect of the invention is to propose a kind of air source heat pump.
In view of this, according to an aspect of the present invention, it is proposed that a kind of control method of air source heat pump, air-source heat
Pump includes outdoor unit, and outdoor unit includes compressor, blower fan, heat exchanger, and control method includes：Receive compressor start and/or
During shutdown command, the operation power and/or running current of blower fan are obtained；Judge whether run power and/or running current meets
Preparatory condition；When running power and/or running current meets preparatory condition, then the alerting signal of cleaning heat exchanger is sent.
The control method of air source heat pump provided by the invention, when receiving compressor start and/or shutdown command, lead to
The operation power and/or running current for obtaining outdoor fan are crossed, and judges whether the operation power of acquisition and/or running current are full
Sufficient preparatory condition, preparatory condition are to be set according to the current operation windscreen of outdoor fan, and operation windscreen is specified for program setting
Windscreen (low/medium/high), runs that the gear of windscreen is higher, and corresponding rated power and rated current are higher.When operation power and/
Or running current illustrates that the load of now outdoor fan is excessive when meeting preparatory condition, meet to remind cleaning heat exchanger
Condition, then send the alerting signal of cleaning heat exchanger, realize and remind user and producer's after-sale service cleaning outdoor unit in time
The problem of finned heat exchanger and excessive overhaul plan outdoor fan load, the good heat transfer effect of outdoor unit heat exchanger is ensure that,
Avoid the electric appliance circuits overheat triggered because motor load is excessive and damage economic loss caused by motor problem, improve production
Quality.
According to the control method of the above-mentioned air source heat pump of the present invention, there can also be following technical characteristic：
In the above-mentioned technical solutions, it is preferable that judge to run power and/or running current whether meet preparatory condition it
Before, in addition to：Obtain the operation windscreen of blower fan；The rated power and/or specified according to corresponding to operation windscreen searches operation windscreen
Electric current.
In the technical scheme, rated power corresponding to the different operation windscreen of outdoor fan is different with rated current, fortune
The gear of sector-style gear is higher, and corresponding nominal operation power and rated current are higher, and outdoor fan is transported with different operation windscreens
During row, preparatory condition is different, therefore, before judging operation power and/or whether running current meet preparatory condition, first has to
Obtain the operation windscreen of blower fan, so as to the operation windscreen for acquisition, rated power and/or rated current, root corresponding to lookup
It is investigated that rated power and/or rated current the setting preparatory condition found so that the operation power and/or operation electricity of outdoor fan
Stream meets the situation of preparatory condition, is exactly the stifled situation for exceeding normal range (NR) with the load of outdoor fan of heat exchanger surface stolen goods.
In any of the above-described technical scheme, it is preferable that preparatory condition includes：At interval of preset time, continuous preset times
The operation power of judgement is both greater than rated power and/or running current is both greater than rated current.
In the technical scheme, preparatory condition is set as：At interval of preset time, the operation work(of continuous preset times judgement
Rate is both greater than rated power and/or running current is both greater than rated current, preset time here could be arranged to 1 second, 2 seconds, 3
Second ..., preset time here is arranged to the rank of second, can receive start and/or shutdown command in compressor, but not yet
Perform and judge whether stolen goods block up for the heat exchanger of outdoor unit of air source heat pump before start and/or shutdown action, can be in outdoor unit
Heat exchanger whether stolen goods it is stifled in the case of, send the alerting signal of cleaning heat exchanger in time, avoid and continue to start shooting and/or shut down
And the motor persistent fever of outdoor fan is caused to cause the damage of motor.
In any of the above-described technical scheme, it is preferable that when operation power is small less than or equal to rated power and/or running current
When equal to rated current, remove judged result and control compressor normal boot-strap and/or shutdown.
In the technical scheme, at interval of preset time, whether the operation power that continuous preset times judge is more than volume
Determine during whether power and/or running current be more than rated current, if when operation power be less than or equal to rated power and/
Or running current is less than or equal to rated current, indicate that the load of the now outdoor fan of air source heat pump still in safe operation model
Enclose, because being probably that the surface of outdoor fan heat exchanger is drifted along in the presence of some, with outdoor fan when judging first time
Operation, drift along and depart from heat exchanger surface, therefore, when second judges, the operation power of outdoor fan and/or operation are electric
Stream is in normal range (NR), by the judgement of preset times, improves the accuracy of judgement, is less than or equal to specified work(when running power
When rate and/or running current are less than or equal to rated current, judgement next time is no longer just carried out, removes judged result to avoid sentencing
Disconnected result adds up, and controls compressor normal boot-strap and/or shutdown, realizes the set function of air source heat pump.
In any of the above-described technical scheme, it is preferable that preset times are M times, the integer of M >=3.
In the technical scheme, preset times are set greater than the operation for equal to 3, avoiding and once judging outdoor fan
Power and/or running current are more than the alerting signal that rated power/rated current is issued by cleaning heat exchanger, improve judgement
Accuracy.
According to the second aspect of the invention, it is proposed that a kind of control system of air source heat pump, air conditioner include outdoor
Machine, outdoor unit include compressor, blower fan, heat exchanger, and control system includes：Receiving unit, for receive compressor start and/
Or during shutdown command, obtain the operation power and/or running current of blower fan；Judging unit, for judging operation power and/or fortune
Whether row electric current meets preparatory condition；Reminding unit, for when running power and/or running current meets preparatory condition, sending out
Go out to clean the alerting signal of heat exchanger.
The control system of air source heat pump provided by the invention, compressor start and/or shutdown are received in receiving unit
During instruction, the operation power and/or running current of outdoor fan are obtained, judging unit judges operation power and/or the fortune obtained
Whether row electric current meets preparatory condition, and preparatory condition is to be set according to the current operation windscreen of outdoor fan, and operation windscreen is journey
The specified windscreen (low/medium/high) of sequence setting, runs that the gear of windscreen is higher, and corresponding rated power and rated current are higher.When
When operation power and/or running current meet preparatory condition, illustrate that the load of now outdoor fan is excessive, met to remind clearly
Wash the condition of heat exchanger, then reminding unit sends the alerting signal of cleaning heat exchanger, realizes and reminds user and producer in time
The problem of outdoor unit finned heat exchanger and excessive overhaul plan outdoor fan load, is cleaned in after-sale service, ensure that outdoor unit exchanges heat
The good heat transfer effect of device, caused by avoiding the electric appliance circuits overheat and damage motor problem triggered because motor load is excessive
Economic loss, improve product quality.
According to the control system of the above-mentioned air source heat pump of the present invention, there can also be following technical characteristic：
In the above-mentioned technical solutions, it is preferable that acquiring unit, for obtaining the operation windscreen of blower fan；Searching unit, it is used for
Rated power and/or rated current according to corresponding to operation windscreen searches operation windscreen.
In the technical scheme, rated power corresponding to the different operation windscreen of outdoor fan is different with rated current, fortune
The gear of sector-style gear is higher, and corresponding nominal operation power and rated current are higher, and outdoor fan is transported with different operation windscreens
During row, preparatory condition is different, therefore, before judging operation power and/or whether running current meet preparatory condition, obtains first
Unit is taken to obtain the operation windscreen of blower fan, so as to the operation windscreen for acquisition, rated power corresponding to searching unit lookup
And/or rated current, preparatory condition is set according to the rated power and/or rated current found so that the fortune of outdoor fan
Row power and/or running current meet the situation of preparatory condition, are exactly that heat exchanger surface stolen goods are stifled and the load of outdoor fan exceeds
The situation of normal range (NR).
In any of the above-described technical scheme, it is preferable that preparatory condition includes：At interval of preset time, continuous preset times
The operation power of judgement is both greater than rated power and/or running current is both greater than rated current.
In the technical scheme, preparatory condition is set as：At interval of preset time, the operation work(of continuous preset times judgement
Rate is both greater than rated power and/or running current is both greater than rated current, preset time here could be arranged to 1 second, 2 seconds, 3
Second ..., preset time here is arranged to the rank of second, can receive start and/or shutdown command in compressor, but not yet
Perform and judge whether stolen goods block up for the heat exchanger of outdoor unit of air source heat pump before start and/or shutdown action, can be in outdoor unit
Heat exchanger whether stolen goods it is stifled in the case of, send the alerting signal of cleaning heat exchanger in time, avoid and continue to start shooting and/or shut down
And the motor persistent fever of outdoor fan is caused to cause the damage of motor.
In any of the above-described technical scheme, it is preferable that clearing cell, for being less than or equal to rated power when operation power
And/or running current removes judged result and simultaneously controls compressor normal boot-strap and/or shutdown when being less than or equal to rated current.
In the technical scheme, at interval of preset time, whether the operation power that continuous preset times judge is more than volume
Determine during whether power and/or running current be more than rated current, if when operation power be less than or equal to rated power and/
Or running current is less than or equal to rated current, indicate that the load of the now outdoor fan of air source heat pump still in safe operation model
Enclose, because being probably that the surface of outdoor fan heat exchanger is drifted along in the presence of some, with outdoor fan when judging first time
Operation, drift along and depart from heat exchanger surface, therefore, when second judges, the operation power of outdoor fan and/or operation are electric
Stream is in normal range (NR), by the judgement of preset times, improves the accuracy of judgement, is less than or equal to specified work(when running power
When rate and/or running current are less than or equal to rated current, with regard to no longer carrying out judgement next time, clearing cell removes judged result
To avoid the cumulative of judged result, and compressor normal boot-strap and/or shutdown are controlled, realize the set function of air source heat pump.
In any of the above-described technical scheme, it is preferable that preset times are M times, the integer of M >=3.
In the technical scheme, preset times are set greater than the operation for equal to 3, avoiding and once judging outdoor fan
Power and/or running current are more than the alerting signal that rated power/rated current is issued by cleaning heat exchanger, improve judgement
Accuracy.
According to the third aspect of the present invention, the invention provides a kind of air source heat pump, including any of the above-described technical side
The control system of air source heat pump in case.
Air source heat pump provided by the invention, include the control system of the air source heat pump described in any of the above-described technical scheme
System, therefore whole beneficial effects of the control system with the air source heat pump, will not be repeated here.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 shows the schematic flow sheet of the control method of the air source heat pump of one embodiment of the present of invention；
Fig. 2 shows the schematic flow sheet of the control method of the air source heat pump of an alternative embodiment of the invention；
Fig. 3 shows the schematic block diagram of the control system of the air source heat pump of one embodiment of the present of invention；
Fig. 4 shows the schematic block diagram of the control system of the air source heat pump of an alternative embodiment of the invention；
Fig. 5 shows the schematic block diagram of the air source heat pump of one embodiment of the present of invention；
Fig. 6 shows the schematic flow sheet of the control method of the air source heat pump of the specific embodiment of the present invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that aforementioned aspect of the present invention, feature and advantage
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not limited to following public affairs
The limitation for the specific embodiment opened.
The embodiment of first aspect present invention, proposes a kind of control method of air source heat pump, and Fig. 1 shows the present invention's
The schematic flow sheet of the control method of the air source heat pump of one embodiment：
Step 102, when receiving compressor start and/or shutdown command, the operation power and/or operation electricity of blower fan are obtained
Stream；
Step 104, judge whether run power and/or running current meets preparatory condition；
Step 106, when running power and/or running current meets preparatory condition, then the prompting of cleaning heat exchanger is sent
Signal.
The control method of air source heat pump provided by the invention, when receiving compressor start and/or shutdown command, lead to
The operation power and/or running current for obtaining outdoor fan are crossed, and judges whether the operation power of acquisition and/or running current are full
Sufficient preparatory condition, preparatory condition are to be set according to the current operation windscreen of outdoor fan, and operation windscreen is specified for program setting
Windscreen (low/medium/high), runs that the gear of windscreen is higher, and corresponding rated power and rated current are higher.When operation power and/
Or running current illustrates that the load of now outdoor fan is excessive when meeting preparatory condition, meet to remind cleaning heat exchanger
Condition, then send the alerting signal of cleaning heat exchanger, realize and remind user and producer's after-sale service cleaning outdoor unit in time
The problem of finned heat exchanger and excessive overhaul plan outdoor fan load, the good heat transfer effect of outdoor unit heat exchanger is ensure that,
Avoid the electric appliance circuits overheat triggered because motor load is excessive and damage economic loss caused by motor problem, improve production
Quality.
Fig. 2 shows the schematic flow sheet of the control method of the air source heat pump of an alternative embodiment of the invention.Wherein,
This method includes：
Step 202, when receiving compressor start and/or shutdown command, the operation power and/or operation electricity of blower fan are obtained
Stream；
Step 204, the operation windscreen of blower fan is obtained；
Step 206, rated power and/or rated current according to corresponding to operation windscreen searches operation windscreen；
Step 208, at interval of preset time, continuous preset times judge run power whether be more than rated power and/or
Whether running current is more than rated current, is, then no into step 210, then into step 212；
Step 210, the alerting signal of cleaning heat exchanger is sent；
Step 212, remove judged result and control compressor normal boot-strap and/or shutdown.
Wherein, preset times are M times, the integer of M >=3.
In one embodiment of the invention, it is preferable that judging whether run power and/or running current meets to preset
Before condition, in addition to：Obtain the operation windscreen of blower fan；According to operation windscreen search operation windscreen corresponding to rated power and/
Or rated current.
In this embodiment, rated power corresponding to the different operation windscreen of outdoor fan is different with rated current, operation
The gear of windscreen is higher, and corresponding nominal operation power and rated current are higher, and outdoor fan is run with different operation windscreens
When, preparatory condition is different, therefore, before judging operation power and/or whether running current meet preparatory condition, first has to obtain
The operation windscreen of blower fan is taken, so as to the operation windscreen for acquisition, rated power and/or rated current corresponding to lookup, according to
Rated power and/or rated current the setting preparatory condition found so that the operation power and/or running current of outdoor fan
Meet the situation of preparatory condition, be exactly the stifled situation for exceeding normal range (NR) with the load of outdoor fan of heat exchanger surface stolen goods.
In one embodiment of the invention, it is preferable that preparatory condition includes：At interval of preset time, continuous default time
The operation power that number judges is both greater than rated power and/or running current is both greater than rated current.
In this embodiment, preparatory condition is set as：At interval of preset time, the operation power of continuous preset times judgement
Both greater than rated power and/or running current are both greater than rated current, preset time here could be arranged to 1 second, 2 seconds, 3
Second ..., preset time here is arranged to the rank of second, can receive start and/or shutdown command in compressor, but not yet
Perform and judge whether stolen goods block up for the heat exchanger of outdoor unit of air source heat pump before start and/or shutdown action, can be in outdoor unit
Heat exchanger whether stolen goods it is stifled in the case of, send the alerting signal of cleaning heat exchanger in time, avoid and continue to start shooting and/or shut down
And the motor persistent fever of outdoor fan is caused to cause the damage of motor.
In one embodiment of the invention, it is preferable that when operation power is less than or equal to rated power and/or running current
During less than or equal to rated current, remove judged result and control compressor normal boot-strap and/or shutdown.
In this embodiment, at interval of preset time, it is specified whether the operation power that continuous preset times judge is more than
During whether power and/or running current are more than rated current, if when operation power be less than or equal to rated power and/or
Running current is less than or equal to rated current, indicates that the load of the now outdoor fan of air source heat pump still in safe operation model
Enclose, because being probably that the surface of outdoor fan heat exchanger is drifted along in the presence of some, with outdoor fan when judging first time
Operation, drift along and depart from heat exchanger surface, therefore, when second judges, the operation power of outdoor fan and/or operation are electric
Stream is in normal range (NR), by the judgement of preset times, improves the accuracy of judgement, is less than or equal to specified work(when running power
When rate and/or running current are less than or equal to rated current, judgement next time is no longer just carried out, removes judged result to avoid sentencing
Disconnected result adds up, and controls compressor normal boot-strap and/or shutdown, realizes the set function of air source heat pump.
In one embodiment of the invention, it is preferable that preset times are M times, the integer of M >=3.
In this embodiment, preset times, which are set greater than, equal to 3, avoids the operation work(for once judging outdoor fan
Rate and/or running current are more than the alerting signal that rated power/rated current is issued by cleaning heat exchanger, improve the standard of judgement
True property.
The embodiment of second aspect of the present invention, a kind of control system 300 of air source heat pump is proposed, Fig. 3 shows this hair
The schematic block diagram of the control system 300 of the air source heat pump of bright one embodiment：
Receiving unit 302, for receiving compressor start and/or during shutdown command, obtain blower fan operation power and/
Or running current；
Judging unit 304, for judging whether run power and/or running current meets preparatory condition；
Reminding unit 306, for when running power and/or running current meets preparatory condition, sending cleaning heat exchanger
Alerting signal.
The control system 300 of air source heat pump provided by the invention, receiving unit 302 receive compressor start and/
Or during shutdown command, the operation power and/or running current of outdoor fan are obtained, judging unit 304 judges the operation work(obtained
Whether rate and/or running current meet preparatory condition, and preparatory condition is to be set according to the current operation windscreen of outdoor fan, operation
Windscreen is the specified windscreen (low/medium/high) of program setting, and it is higher to run the gear of windscreen, corresponding rated power and specified electricity
Stream is higher.When running power and/or running current meets preparatory condition, illustrate that the load of now outdoor fan is excessive,
Meet the condition for reminding cleaning heat exchanger, then reminding unit 306 sends the alerting signal of cleaning heat exchanger, realizes and carries in time
The problem of outdoor unit finned heat exchanger and excessive overhaul plan outdoor fan load are cleaned in awake user and producer's after-sale service, ensures
The good heat transfer effect of outdoor unit heat exchanger, avoid electric appliance circuits overheat and damage electricity because motor load is excessive and triggers
Economic loss caused by machine problem, improves product quality.
Fig. 4 shows the schematic block diagram of the control system 400 of the air source heat pump of an alternative embodiment of the invention.Its
In, the control system 400 of air source heat pump includes：
Receiving unit 402, for receiving compressor start and/or during shutdown command, obtain blower fan operation power and/
Or running current；
Judging unit 404, for judging whether run power and/or running current meets preparatory condition；
Reminding unit 406, for when running power and/or running current meets preparatory condition, sending cleaning heat exchanger
Alerting signal；
Acquiring unit 408, for obtaining the operation windscreen of blower fan；
Searching unit 410, for rated power and/or rated current according to corresponding to operation windscreen lookup operation windscreen；
Clearing cell 412, for being less than or equal to specified electricity less than or equal to rated power and/or running current when operation power
During stream, remove judged result and control compressor normal boot-strap and/or shutdown.
Wherein, preparatory condition includes：At interval of preset time, the operation power that continuous preset times judge is both greater than specified
Power and/or running current are both greater than rated current；Preset times are M times, the integer of M >=3.
In one embodiment of the invention, it is preferable that acquiring unit 408, for obtaining the operation windscreen of blower fan；Search
Unit 410, for rated power and/or rated current according to corresponding to operation windscreen lookup operation windscreen.
In this embodiment, rated power corresponding to the different operation windscreen of outdoor fan is different with rated current, operation
The gear of windscreen is higher, and corresponding nominal operation power and rated current are higher, and outdoor fan is run with different operation windscreens
When, preparatory condition is different, therefore, before judging operation power and/or whether running current meet preparatory condition, obtains first
Unit 408 will obtain the operation windscreen of blower fan, and so as to the operation windscreen for acquisition, searching unit 410 is searched corresponding specified
Power and/or rated current, preparatory condition is set according to the rated power and/or rated current found so that outdoor fan
Operation power and/or running current meet the situation of preparatory condition, be exactly that heat exchanger surface stolen goods are stifled and the load of outdoor fan
Beyond the situation of normal range (NR).
In one embodiment of the invention, it is preferable that preparatory condition includes：At interval of preset time, continuous default time
The operation power that number judges is both greater than rated power and/or running current is both greater than rated current.
In this embodiment, preparatory condition is set as：At interval of preset time, the operation power of continuous preset times judgement
Both greater than rated power and/or running current are both greater than rated current, preset time here could be arranged to 1 second, 2 seconds, 3
Second ..., preset time here is arranged to the rank of second, can receive start and/or shutdown command in compressor, but not yet
Perform and judge whether stolen goods block up for the heat exchanger of outdoor unit of air source heat pump before start and/or shutdown action, can be in outdoor unit
Heat exchanger whether stolen goods it is stifled in the case of, send the alerting signal of cleaning heat exchanger in time, avoid and continue to start shooting and/or shut down
And the motor persistent fever of outdoor fan is caused to cause the damage of motor.
In one embodiment of the invention, it is preferable that clearing cell 412, for when operation power is less than or equal to specified
When power and/or running current are less than or equal to rated current, remove judged result and control compressor normal boot-strap and/or pass
Machine.
In this embodiment, at interval of preset time, it is specified whether the operation power that continuous preset times judge is more than
During whether power and/or running current are more than rated current, if when operation power be less than or equal to rated power and/or
Running current is less than or equal to rated current, indicates that the load of the now outdoor fan of air source heat pump still in safe operation model
Enclose, because being probably that the surface of outdoor fan heat exchanger is drifted along in the presence of some, with outdoor fan when judging first time
Operation, drift along and depart from heat exchanger surface, therefore, when second judges, the operation power of outdoor fan and/or operation are electric
Stream is in normal range (NR), by the judgement of preset times, improves the accuracy of judgement, is less than or equal to specified work(when running power
When rate and/or running current are less than or equal to rated current, with regard to no longer carrying out judgement next time, clearing cell 412, which is removed, to be judged
As a result to avoid the cumulative of judged result, and compressor normal boot-strap and/or shutdown are controlled, realizes the set work(of air source heat pump
Energy.
In one embodiment of the invention, it is preferable that preset times are M times, the integer of M >=3.
In this embodiment, preset times, which are set greater than, equal to 3, avoids the operation work(for once judging outdoor fan
Rate and/or running current are more than the alerting signal that rated power/rated current is issued by cleaning heat exchanger, improve the standard of judgement
True property.
The embodiment of third aspect present invention, it is proposed that a kind of air source heat pump 500, Fig. 5 show one of the present invention
The schematic block diagram of the air source heat pump 500 of embodiment.Wherein, the air source heat pump 500 includes the sky in any of the above-described embodiment
The control system 502 of air supply heat pump.
Air source heat pump 500 provided by the invention, include the control system of the air source heat pump described in any of the above-described embodiment
System 502, therefore whole beneficial effects of the control system 502 with the air source heat pump, will not be repeated here.
Fig. 6 shows the schematic flow sheet of the control method of the air source heat pump of the specific embodiment of the present invention.Its
In, this method includes：
Step 602, compressor start and/or shutdown command are received；
Step 604, the operation windscreen and operation power P of blower fan are obtained1And/or running current I1；
Step 606, judge to run power P1Whether operation windscreen corresponding to rated power P and/or running current I is more than1It is
Be more than rated current I corresponding to no operation windscreen, be, then it is no into step 608, then into step 618；
Step 608, it is spaced 1 second, obtains the operation windscreen and operation power P of blower fan2And/or running current I2；
Step 610, judge to run power P2Whether operation windscreen corresponding to rated power P and/or running current I is more than2It is
Be more than rated current I corresponding to no operation windscreen, be, then it is no into step 612, then into step 618；
Step 612, it is spaced 1 second, obtains the operation windscreen and operation power P of blower fan3And/or running current I3；
Step 614, judge to run power P3Whether operation windscreen corresponding to rated power P and/or running current I is more than3It is
Be more than rated current I corresponding to no operation windscreen, be, then it is no into step 616, then into step 618；
Step 616, the alerting signal of cleaning heat exchanger is sent；
Step 618, remove judged result and control compressor normal boot-strap and/or shutdown.
The control method for the air source heat pump that the specific embodiment of the present invention provides, no matter outdoor unit is constant speed type
Or frequency conversion type, after unit runs heating or the instruction of summer operation refrigeration mode in winter, first before the unlatching of compressor machine
(the specified wind shelves of program setting are high/medium/low corresponding rated motor power P to the specified wind shelves of fan operation of execution outdoor unit
With rated motor electric current I), program setting interval time T (1 second), distinguish power P during 3 motor operations of continuous monitoring1/P2/
P3And/or running current I1/I2/I3If the continuous power of motor P monitored three times1/P2/P3It is all higher than P setting values and/or fortune
Row electric current I1/I2/I3I setting values are all higher than, then send the alerting signal of cleaning heat exchanger, can be in the main electric-controlled plates of outdoor unit PCB
Or display alarm information on line control machine, and alarmed, realize and remind user and producer's after-sale service cleaning outdoor unit in time
The problem of finned heat exchanger and excessive overhaul plan outdoor fan load, the good heat transfer effect of outdoor unit heat exchanger is ensure that,
Avoid the electric appliance circuits overheat triggered because motor load is excessive and damage economic loss caused by motor problem, improve production
Quality.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the present invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (11)
1. a kind of control method of air source heat pump, it is characterised in that the air source heat pump includes outdoor unit, the outdoor unit
Including compressor, blower fan, heat exchanger, the control method includes：
When receiving start and/or the shutdown command of the compressor, the operation power and/or operation electricity of the blower fan are obtained
Stream；
Judge whether the operation power and/or the running current meet preparatory condition；
When the operation power and/or the running current meet the preparatory condition, then the cleaning heat exchanger is sent
Alerting signal.
2. the control method of air source heat pump according to claim 1, it is characterised in that judge the operation work(described
Before whether rate and/or the running current meet preparatory condition, in addition to：
Obtain the operation windscreen of the blower fan；
Rated power and/or rated current according to corresponding to the operation windscreen searches the operation windscreen.
3. the control method of air source heat pump according to claim 2, it is characterised in that
The preparatory condition includes：At interval of preset time, the operation power that continuous preset times judge is both greater than described
Rated power and/or the running current are both greater than the rated current.
4. the control method of air source heat pump according to claim 3, it is characterised in that also include：
When the operation power is less than or equal to the rated current less than or equal to the rated power and/or the running current
When, remove judged result and control the compressor normal boot-strap and/or shutdown.
5. the control method of the air source heat pump according to claim 3 or 4, it is characterised in that
The preset times are M times, the integer of M >=3.
6. a kind of control system of air source heat pump, it is characterised in that the air conditioner includes outdoor unit, and the outdoor unit includes
Compressor, blower fan, heat exchanger, the control system include：
Receiving unit, during start and/or shutdown command for receiving the compressor, obtain the operation power of the blower fan
And/or running current；
Judging unit, for judging whether the operation power and/or the running current meet preparatory condition；
Reminding unit, for when it is described operation power and/or the running current meet the preparatory condition when, send cleaning institute
State the alerting signal of heat exchanger.
7. the control system of air source heat pump according to claim 6, it is characterised in that also include：
Acquiring unit, for obtaining the operation windscreen of the blower fan；
Searching unit, for rated power and/or rated current according to corresponding to the operation windscreen lookup operation windscreen.
8. the control system of air source heat pump according to claim 7, it is characterised in that
The preparatory condition includes：At interval of preset time, the operation power that continuous preset times judge is both greater than described
Rated power and/or the running current are both greater than the rated current.
9. the control system of air source heat pump according to claim 8, it is characterised in that also include:
Clearing cell, for being less than or equal to when the operation power less than or equal to the rated power and/or the running current
During the rated current, remove judged result and control the compressor normal boot-strap and/or shutdown.
10. the control system of air source heat pump according to claim 8 or claim 9, it is characterised in that the preset times are M
It is secondary, the integer of M >=3.
A kind of 11. air source heat pump, it is characterised in that including：
The control system of air source heat pump as any one of claim 6 to 10.
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| CN201710612950.3A CN107388632A (en) | 2017-07-25 | 2017-07-25 | Control method, control system and the air source heat pump of air source heat pump |
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| CN201710612950.3A CN107388632A (en) | 2017-07-25 | 2017-07-25 | Control method, control system and the air source heat pump of air source heat pump |
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| CN114353258A (en) * | 2021-12-06 | 2022-04-15 | 青岛海尔空调电子有限公司 | Air conditioner evaporator detection method, storage medium and air conditioner |
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Application publication date: 20171124 |