CN106123413B - Prevent the method and device that electric expansion valve is stuck - Google Patents
Prevent the method and device that electric expansion valve is stuck Download PDFInfo
- Publication number
- CN106123413B CN106123413B CN201610442974.4A CN201610442974A CN106123413B CN 106123413 B CN106123413 B CN 106123413B CN 201610442974 A CN201610442974 A CN 201610442974A CN 106123413 B CN106123413 B CN 106123413B
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- Prior art keywords
- expansion valve
- electric expansion
- air conditioner
- reset
- stuck
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a kind of methods for preventing electric expansion valve stuck, including step：After air-conditioning unlatching, judge whether air conditioner electric expansion valve resets；When air conditioner electric expansion valve does not reset, controls the electric expansion valve and rotate backward the first default step number with by electric expansion valve zero setting；After the electric expansion valve zero setting, controls the electric expansion valve and rotate forward the reset operation for completing electric expansion valve to initial opening operation.The invention also discloses a kind of devices for preventing electric expansion valve stuck.Present invention reduces the probability that electric expansion valve is stuck, reduce quality complaint, improve the Experience Degree of product.
Description
Technical field
The present invention relates to air-conditioning technical fields, more particularly to the method and device for preventing electric expansion valve stuck.
Background technology
With social progress, throttling is more and more realized using electric expansion valve, to promote the comfort used.Electricity
Sub- expansion valve is precise part, and service life and reliability requirement are higher.And the quality of electric expansion valve is very different, part
The unqualified brand of quality and sample are susceptible to stuck problem in actual use.It is being especially using computer room
Occasion or developed country domestic consumer, it is usually non-stop-machine after air-conditioning drives, use throughout the year, electric expansion valve exists
During this, be constantly adjusted, especially frequently occur the homing action of spool, increase electric expansion valve occur it is stuck general
Rate causes quality to complain.
The above is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that the above is existing skill
Art.
Invention content
The main purpose of the present invention is to provide a kind of method and devices for preventing electric expansion valve stuck, it is intended to solve mesh
Preceding electric expansion valve is constantly adjusted, and especially frequently occurs the homing action of spool, and it is stuck to increase electric expansion valve appearance
Probability, the problem of causing quality to complain.
To achieve the above object, a kind of method for preventing electric expansion valve stuck provided by the invention, including step：
After air-conditioning unlatching, judge whether air conditioner electric expansion valve resets；
When air conditioner electric expansion valve does not reset, controls the electric expansion valve and rotate backward the first default step number to incite somebody to action
Electric expansion valve zero setting；
After the electric expansion valve zero setting, controls the electric expansion valve and rotate forward to initial opening operation, complete
The reset of electric expansion valve operates.
Preferably, the method further includes：
After compressor of air conditioner is out of service, controls the electric expansion valve and rotate forward to the second default step number；
When the first preset time reaches, control electric expansion valve rotates backward the described first default step number so that electronics is swollen
Swollen valve zero setting；
After controlling the electric expansion valve zero setting, controls the electric expansion valve and rotate forward to initial opening, and protect
The initial opening is held, the attribute for resetting mark is set as having resetted.
Preferably, the step of whether electric expansion valve for judging air conditioner resets include：
Obtain the reset mark of air conditioner electric expansion valve；
When the reset is identified as and does not reset mark, or get the reset not successfully in the second preset time
When mark, judge that air conditioner electric expansion valve does not reset；
When air conditioner reset is identified as and has resetted mark, judge that air conditioner electric expansion valve has resetted.
Preferably, when air conditioner powers on for the first time, the method further includes：
The compressor for being spaced third preset time control air conditioner opens operation, and with default frequency or pre-set
Frequency is run.
Preferably, the method further includes：
When air conditioner is in fast inspection pattern, the reset operation of electric expansion valve is executed.
Preferably, the method further includes：
When the compressor of air conditioner is in the operation phase for reaching pass, the reset operation of electric expansion valve, control are not executed
Electric expansion valve processed turns to the second default step number, and turns to the initial opening after being spaced the first preset time.
In addition, to achieve the above object, the present invention also provides a kind of devices for preventing electric expansion valve stuck, including：
Judgment module, for after air-conditioning unlatching, judging whether air conditioner electric expansion valve resets；
Control module rotates backward for when air conditioner electric expansion valve does not reset, controlling the electric expansion valve
One default step number is with by electric expansion valve zero setting；Control module is additionally operable to
After the electric expansion valve zero setting, controls the electric expansion valve and rotate forward to initial opening operation, complete
The reset of electric expansion valve operates.
Preferably, further include setup module,
The control module, is additionally operable to after compressor of air conditioner is out of service, controls the electric expansion valve and rotates forward
To the second default step number；When the first preset time reaches, control electric expansion valve rotate backward the described first default step number with
By electric expansion valve zero setting；After controlling the electric expansion valve zero setting, controls the electric expansion valve and rotate forward to initial
Aperture, and keep the initial opening；
The setup module, for the attribute for resetting mark to be set as having resetted.
Preferably, the judgment module includes：Acquiring unit, the reset for obtaining air conditioner electric expansion valve identify；
Judging unit, for failed when the reset is identified as and does not reset mark, or in the second preset time
When getting the reset mark, judge that air conditioner electric expansion valve does not reset；Judging unit is additionally operable to reset in air conditioner and mark
Know when having resetted mark, to judge that air conditioner electric expansion valve has resetted.
Preferably, when air conditioner powers on for the first time, the control module is additionally operable to interval third preset time control air-conditioning
The compressor of device opens operation, and is run with default frequency or pre-set frequency.
Preferably, when air conditioner is in fast inspection pattern, the reset operation of electric expansion valve is executed.
Preferably, the control module is additionally operable to when the compressor of air conditioner is in the operation phase for reaching pass, control
Electric expansion valve turns to the second default step number, and turns to the initial opening after being spaced the first preset time.
The present invention is that electric expansion valve setting resets mark, without in operation of air conditioner in operational process it is repetitious into
The reset of row electric expansion valve operates, and first controls electric expansion valve in resetting operating process and rerunned to initial position to first
Beginning aperture is completed to reset operation, reduces the stuck probability of electric expansion valve, reduces quality complaint, improves the experience of product
Degree.
Description of the drawings
Fig. 1 is the flow diagram of the first embodiment for the method that the present invention prevents electric expansion valve stuck；
Fig. 2 is to judge the flow diagram whether electric expansion valve resets in one embodiment of the invention；
Fig. 3 is the flow diagram of the second embodiment for the method that the present invention prevents electric expansion valve stuck；
Fig. 4 is the flow diagram of the 3rd embodiment for the method that the present invention prevents electric expansion valve stuck；
Fig. 5 is the high-level schematic functional block diagram of the first embodiment for the device that the present invention prevents electric expansion valve stuck；
Fig. 6 is the refinement high-level schematic functional block diagram of one embodiment of judgment module in Fig. 5；
Fig. 7 is the high-level schematic functional block diagram of the second embodiment for the device that the present invention prevents electric expansion valve stuck.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Referring to Fig.1, Fig. 1 is the flow diagram of the first embodiment for the method that the present invention prevents electric expansion valve stuck.
In one embodiment, the method for preventing electric expansion valve stuck includes：
Step S10 judges whether air conditioner electric expansion valve resets after air-conditioning unlatching；
In the present embodiment, the air-conditioning powers on after opening including air-conditioner outdoor unit for the first time or air-conditioning booting is powered on but pressed
Before contracting machine is also not actuated, after air-conditioning unlatching, judge whether air conditioner electric expansion valve resets.With reference to figure 2, the judgement air-conditioning
The process whether device electric expansion valve resets includes：
Step S11 obtains the reset mark of air conditioner electric expansion valve；
Step S12 when the reset is identified as and does not reset mark, or is got not successfully in the second preset time
When the reset mark, judge that air conditioner electric expansion valve does not reset；
Step S13 judges that air conditioner electric expansion valve has resetted when air conditioner reset is identified as and has resetted mark.
The reset mark for receiving the electric expansion valve that indoor unit sends over, judges the electric expansion valve that indoor unit is sent
Reset identify whether for resetted mark, for example, it is described reset be identified as 1 when, be judged as having resetted, be identified as in reset
When 0, it is judged as not resetting.It is described reset mark and also can also be to represent by other forms of expression resetted and do not resetted
State.The form of expression that the electric expansion valve does not reset is also possible that after air-conditioning unlatching, not from room in the first preset time
Interior machine, which receives electric expansion valve and resets mark, also to be represented electric expansion valve and does not reset.First preset time can be 20s
Or 15s etc. is arranged according to household air-conditioner or user demand.In other embodiments of the present invention, in order to reduce system resource
Waste improves exploitation speed and efficiency, when air conditioner is in fast inspection pattern, executes the reset operation of electric expansion valve, without
Execute the deterministic process whether electric expansion valve has resetted.
Step S20, when air conditioner electric expansion valve does not reset, controlling the electric expansion valve, to rotate backward first default
Step number is with by electric expansion valve zero setting；
When electric expansion valve does not reset, needs to carry out reset operation to electric expansion valve, control the electric expansion valve
The first default step number is rotated backward with by electric expansion valve zero setting, the first default step number can be 520 steps etc. other can
It, can be complete by the electric expansion valve after rotating backward the described first default step number by the step number of electric expansion valve zero setting
It closes, revert to original state.
Step S30 controls the electric expansion valve and rotates forward to initial opening fortune after the electric expansion valve zero setting
Row completes the reset operation of electric expansion valve.
After the electric expansion valve zero setting, that is, adjusted to original state by electric expansion valve, control the electronics
Expansion valve is rotated forward to initial opening and is run, and completes the reset operation of electric expansion valve.The initial opening is that an electronics is swollen
The open range of swollen valve, for example, for 220-240 steps or other according to the performance and user of electric expansion valve and air conditioner
The open range of demand setting.When the electric expansion valve has resetted, the aperture of current default is initial opening, allows to compress
Machine is switched on.It is that electric expansion valve setting resets mark in embodiments of the present invention, without more in the operational process in operation of air conditioner
The reset operation of secondary progress electric expansion valve repeatedly, and electric expansion valve is first controlled to initial position in resetting operating process
It reruns to initial opening and completes to reset operation, reduce the stuck probability of electric expansion valve, reduce quality complaint, improve
The Experience Degree of product.
In order to preferably control the operation of air conditioner, the stuck probability of electric expansion valve is further decreased.In the present invention one
In preferred embodiment, when air conditioner powers on for the first time, the method further includes：It is spaced the pressure of third preset time control air conditioner
Contracting machine opens operation, and is run with default frequency or pre-set frequency.The third preset time is 40s or 45s etc..
Preferably, whether the third preset time resets according to the electric expansion valve of air conditioner, and the time resetted is arranged, example
Such as, the third preset time is more than resetting time, or setting weighted value, and the weighted value can be 1 or 0.8 or 0.6 etc.,
Respective weights value is multiplied by resetting time third preset time is arranged.
It is out of service there is compressor during operation of air conditioner, especially frequency changer；Or air conditioner can exist it is a variety of
Operational mode, the compressor for corresponding to air conditioner under different mode are interruption states out of service.It is preferably real one with reference to figure 3
It applies in example, the method further includes：
Step S40 controls the electric expansion valve and rotates forward to the second default step after compressor of air conditioner is out of service
Number；
Step S50, when the first preset time reaches, control electric expansion valve rotate backward the described first default step number with
By electric expansion valve zero setting；
Step S60 controls the electric expansion valve and rotates forward to initially opening after controlling the electric expansion valve zero setting
Degree, and the initial opening is kept, the attribute for resetting mark is set as having resetted.
The compressor is out of service not including the compressor shutdown action during defrost, after compressor is out of service,
It controls the electric expansion valve and rotates forward the second default step number.The second default step number is less than the described first default step number,
It can be 480 steps or 450 steps etc., can also be an open range, for example, 450-480 is walked.Turning to the second default step number
Afterwards, it executes electric expansion valve and resets operation：First preset time that is delayed rotates backward the described first default step number so that electronics is swollen
Swollen valve zero setting controls the electric expansion valve and rotates forward to initial opening, and protect after controlling the electric expansion valve zero setting
The initial opening is held, the attribute for resetting mark is set as having resetted.Reset mark is sent to indoor unit, preferably
Ground does not send reset mark in open state, is just sent in off-mode and resets mark to indoor unit.Machine connects indoors
After receiving reset mark, disconnect the relay of outdoor unit, or separated in time (for example, 2 points 20 seconds or 2 points 30 seconds
Deng) disconnect outdoor unit relay.After compressor shuts down, reset operation is carried out, and is avoided in the same of compressor operating
When adjust electronic expansion valve opening, avoid interfering with each other between compressor operating and electronic expansion valve regulation, further decrease
The stuck probability of electric expansion valve.Tune when in other embodiments of the present invention, in order to ensure compressor and electric expansion valve difference
Section, or only how often adjusts electric expansion valve, after compressor is out of service, get compressor it is out of service when
Between, when can not complete the reset operation of electric expansion valve within the time out of service, this reset operation is not executed, is being stopped
When the time only run enough resets operation, side, which executes, resets operation；Or when compressor nearly (3s or 4s etc.) is opened, control
Electric expansion valve is operated to initial opening, is combined electric expansion valve to reset the scheme of operation by the above-mentioned time, is further decreased
The stuck probability of electric expansion valve.
Air conditioner in the process of running can compressor exist open to close stage, also can exist close to open rank
Section, the stage above-mentioned associated description that has carried out at this time electric expansion valve of the compressor from closing to unlatching.
With reference to figure 4, in a preferred embodiment, the method further includes：
Step S70 does not execute the reset of electric expansion valve when the compressor of air conditioner is in the operation phase for reaching pass
Operation, control electric expansion valve turns to the second default step number, and turns to the initial opening after being spaced the first preset time.
Compressor does not execute reset operation from pass is reached, and electric expansion valve is adjusted to the second default step number, and interval first is pre-
If adjusting electronic expansion valve opening after the time to the initial opening.Further, in the timing since powering on outdoor unit, air-conditioning
After device runs N (3-5 days, acquiescence or user setting), if compressor appearance from the action for running to shutdown, according to above-mentioned pressure
Process after contracting machine is out of service carries out the operation of electric expansion valve, restarts timing after being finished, after N days, electronics is swollen
Swollen valve continue again return compressor it is out of service after operation, so recycle.By the way that the reset of the aperture of electric expansion valve is grasped
Work is associated with the operating status of compressor, avoids mutual interference, and have and avoid what electric expansion valve did not resetted
Situation in turn ensures the reset operation of electric expansion valve, improves air-conditioning while reduction electric expansion valve stuck probability
The Experience Degree of device.
The present invention also provides a kind of devices for preventing electric expansion valve stuck, and the device is for realizing the above method.Reference
Shown in Fig. 5, in one embodiment, the device that the present invention prevents electric expansion valve stuck includes：Judgment module 10 and control module
20。
The judgment module 10, for after air-conditioning unlatching, judging whether air conditioner electric expansion valve resets；
In the present embodiment, the air-conditioning powers on after opening including air-conditioner outdoor unit for the first time or air-conditioning booting is powered on but pressed
Before contracting machine is also not actuated, after air-conditioning unlatching, judge whether air conditioner electric expansion valve resets.With reference to figure 6, the judgment module
10 include：
The acquiring unit 11, the reset for obtaining air conditioner electric expansion valve identify；
The judging unit 12, for when the reset is identified as and does not reset mark, or in the second preset time
When getting the reset mark not successfully, judge that air conditioner electric expansion valve does not reset；Judging unit 12 is additionally operable in air-conditioning
Device reset is identified as when having resetted mark, judges that air conditioner electric expansion valve has resetted.
The reset mark for receiving the electric expansion valve that indoor unit sends over, judges the electric expansion valve that indoor unit is sent
Reset identify whether for resetted mark, for example, it is described reset be identified as 1 when, be judged as having resetted, be identified as in reset
When 0, it is judged as not resetting.It is described reset mark and also can also be to represent by other forms of expression resetted and do not resetted
State.The form of expression that the electric expansion valve does not reset is also possible that after air-conditioning unlatching, not from room in the first preset time
Interior machine, which receives electric expansion valve and resets mark, also to be represented electric expansion valve and does not reset.First preset time can be 20s
Or 15s etc. is arranged according to household air-conditioner or user demand.In other embodiments of the present invention, in order to reduce system resource
Waste improves exploitation speed and efficiency, when air conditioner is in fast inspection pattern, executes the reset operation of electric expansion valve, without
Execute the deterministic process whether electric expansion valve has resetted.
The control module 20, for when air conditioner electric expansion valve does not reset, it is reversed to control the electric expansion valve
The first default step number is rotated with by electric expansion valve zero setting；
When electric expansion valve does not reset, needs to carry out reset operation to electric expansion valve, control the electric expansion valve
The first default step number is rotated backward with by electric expansion valve zero setting, the first default step number can be 520 steps etc. other can
It, can be complete by the electric expansion valve after rotating backward the described first default step number by the step number of electric expansion valve zero setting
It closes, revert to original state.
The control module 20 is additionally operable to after the electric expansion valve zero setting, is controlled the electric expansion valve forward direction and is turned
It moves to initial opening and runs, complete the reset operation of electric expansion valve.
After the electric expansion valve zero setting, that is, adjusted to original state by electric expansion valve, control the electronics
Expansion valve is rotated forward to initial opening and is run, and completes the reset operation of electric expansion valve.The initial opening is that an electronics is swollen
The open range of swollen valve, for example, for 220-240 steps or other according to the performance and user of electric expansion valve and air conditioner
The open range of demand setting.When the electric expansion valve has resetted, the aperture of current default is initial opening, allows to compress
Machine is switched on.It is that electric expansion valve setting resets mark in embodiments of the present invention, without more in the operational process in operation of air conditioner
The reset operation of secondary progress electric expansion valve repeatedly, and electric expansion valve is first controlled to initial position in resetting operating process
It reruns to initial opening and completes to reset operation, reduce the stuck probability of electric expansion valve, reduce quality complaint, improve
The Experience Degree of product.
In order to preferably control the operation of air conditioner, the stuck probability of electric expansion valve is further decreased.In the present invention one
In preferred embodiment, when air conditioner powers on for the first time, the method further includes：It is spaced the pressure of third preset time control air conditioner
Contracting machine opens operation, and is run with default frequency or pre-set frequency.The third preset time is 40s or 45s etc..
Preferably, whether the third preset time resets according to the electric expansion valve of air conditioner, and the time resetted is arranged, example
Such as, the third preset time is more than resetting time, or setting weighted value, and the weighted value can be 1 or 0.8 or 0.6 etc.,
Respective weights value is multiplied by resetting time third preset time is arranged.
It is out of service there is compressor during operation of air conditioner, especially frequency changer；Or air conditioner can exist it is a variety of
Operational mode, the compressor for corresponding to air conditioner under different mode are interruption states out of service.It is described to prevent electricity with reference to figure 7
The stuck device of sub- expansion valve further includes：Setup module 30,
The control module 20, is additionally operable to after compressor of air conditioner is out of service, controls the electric expansion valve forward direction and turns
It moves to the second default step number；Control module 20 is additionally operable to when the first preset time reaches, and control electric expansion valve rotates backward
The first default step number is with by electric expansion valve zero setting；After controlling the electric expansion valve zero setting, it is swollen to control the electronics
Swollen valve is rotated forward to initial opening, and keeps the initial opening；The setup module 30, the attribute for mark will to be resetted
It is set as having resetted.
The compressor is out of service not including the compressor shutdown action during defrost, after compressor is out of service,
It controls the electric expansion valve and rotates forward the second default step number.The second default step number is less than the described first default step number,
It can be 480 steps or 450 steps etc., can also be an open range, for example, 450-480 is walked.Turning to the second default step number
Afterwards, it executes electric expansion valve and resets operation：First preset time that is delayed rotates backward the described first default step number so that electronics is swollen
Swollen valve zero setting controls the electric expansion valve and rotates forward to initial opening, and protect after controlling the electric expansion valve zero setting
The initial opening is held, the attribute for resetting mark is set as having resetted.Reset mark is sent to indoor unit, preferably
Ground does not send reset mark in open state, is just sent in off-mode and resets mark to indoor unit.Machine connects indoors
After receiving reset mark, disconnect the relay of outdoor unit, or separated in time (for example, 2 points 20 seconds or 2 points 30 seconds
Deng) disconnect outdoor unit relay.After compressor shuts down, reset operation is carried out, and is avoided in the same of compressor operating
When adjust electronic expansion valve opening, avoid interfering with each other between compressor operating and electronic expansion valve regulation, further decrease
The stuck probability of electric expansion valve.Tune when in other embodiments of the present invention, in order to ensure compressor and electric expansion valve difference
Section, or only how often adjusts electric expansion valve, after compressor is out of service, get compressor it is out of service when
Between, when can not complete the reset operation of electric expansion valve within the time out of service, this reset operation is not executed, is being stopped
When the time only run enough resets operation, side, which executes, resets operation；Or when compressor nearly (3s or 4s etc.) is opened, control
Electric expansion valve is operated to initial opening, is combined electric expansion valve to reset the scheme of operation by the above-mentioned time, is further decreased
The stuck probability of electric expansion valve.
Air conditioner in the process of running can compressor exist open to close stage, also can exist close to open rank
Section, the stage above-mentioned associated description that has carried out at this time electric expansion valve of the compressor from closing to unlatching.
The control module 20 is additionally operable to, when the compressor of air conditioner is in the operation phase for reaching pass, not execute electricity
The reset of sub- expansion valve operates, and control electric expansion valve turns to the second default step number, and is rotated after being spaced the first preset time
To the initial opening.
Compressor does not execute reset operation from pass is reached, and electric expansion valve is adjusted to the second default step number, and interval first is pre-
If adjusting electronic expansion valve opening after the time to the initial opening.Further, in the timing since powering on outdoor unit, air-conditioning
After device runs N (3-5 days, acquiescence or user setting), if compressor appearance from the action for running to shutdown, according to above-mentioned pressure
Process after contracting machine is out of service carries out the operation of electric expansion valve, restarts timing after being finished, after N days, electronics is swollen
Swollen valve continue again return compressor it is out of service after operation, so recycle.By the way that the reset of the aperture of electric expansion valve is grasped
Work is associated with the operating status of compressor, avoids mutual interference, and have and avoid what electric expansion valve did not resetted
Situation in turn ensures the reset operation of electric expansion valve, improves air-conditioning while reduction electric expansion valve stuck probability
The Experience Degree of device.
The present invention also provides a kind of air conditioner, the above-mentioned device for preventing electric expansion valve stuck is used in the air conditioner.
The air conditioner includes the indispensable hardware such as outdoor unit, indoor unit.The air conditioner is that electric expansion valve setting resets mark, is not necessarily to
The repetitious reset operation for carrying out electric expansion valve in operational process in operation of air conditioner, and first controlled in resetting operating process
Electric expansion valve processed reruns to initial opening to initial position and completes to reset operation, reduces stuck general of electric expansion valve
Rate reduces quality complaint, improves the Experience Degree of product.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of method for preventing electric expansion valve stuck, which is characterized in that including step：
After air-conditioning unlatching, judge whether air conditioner electric expansion valve resets；
When air conditioner electric expansion valve does not reset, controls the electric expansion valve and rotate backward the first default step number with by electronics
Expansion valve zero setting；
After the electric expansion valve zero setting, controls the electric expansion valve and rotate forward to initial opening operation, complete electronics
The reset of expansion valve operates；
When the compressor of air conditioner is in the operation phase for reaching pass, the reset operation of electric expansion valve, control electricity are not executed
Sub- expansion valve turns to the second default step number, and turns to the initial opening after being spaced the first preset time.
2. the as described in claim 1 method for preventing electric expansion valve stuck, which is characterized in that the method further includes：
After compressor of air conditioner is out of service, controls the electric expansion valve and rotate forward to the second default step number；
When the first preset time reaches, control electric expansion valve rotates backward the described first default step number with by electric expansion valve
Zero setting；
After controlling the electric expansion valve zero setting, controls the electric expansion valve and rotate forward to initial opening, and keep institute
Initial opening is stated, the attribute for resetting mark is set as having resetted.
3. the method as claimed in claim 1 or 2 for preventing electric expansion valve stuck, which is characterized in that the judgement air conditioner
Electric expansion valve the step of whether resetting include：
Obtain the reset mark of air conditioner electric expansion valve；
When the reset is identified as and does not reset mark, or get the reset mark not successfully in the second preset time
When, judge that air conditioner electric expansion valve does not reset；
When air conditioner reset is identified as and has resetted mark, judge that air conditioner electric expansion valve has resetted.
4. the as claimed in claim 1 or 2 method for preventing electric expansion valve stuck, which is characterized in that air conditioner for the first time on
When electric, the method further includes：
The compressor for being spaced third preset time control air conditioner opens operation, and with default frequency or pre-set frequency
Operation.
5. the as claimed in claim 1 or 2 method for preventing electric expansion valve stuck, which is characterized in that the method further includes：
When air conditioner is in fast inspection pattern, the reset operation of electric expansion valve is executed.
6. a kind of device for preventing electric expansion valve stuck, which is characterized in that including：
Judgment module, for after air-conditioning unlatching, judging whether air conditioner electric expansion valve resets；
Control module rotates backward first in advance for when air conditioner electric expansion valve does not reset, controlling the electric expansion valve
If step number is with by electric expansion valve zero setting；Control module is additionally operable to
After the electric expansion valve zero setting, controls the electric expansion valve and rotate forward to initial opening operation, complete electronics
The reset of expansion valve operates；
The control module is additionally operable to, when the compressor of air conditioner is in the operation phase for reaching pass, control electric expansion valve
The second default step number is turned to, and the initial opening is turned to after being spaced the first preset time.
7. the device as claimed in claim 6 for preventing electric expansion valve stuck, which is characterized in that further include setup module,
The control module, is additionally operable to after compressor of air conditioner is out of service, controls the electric expansion valve and rotates forward to
Two default step numbers；When the first preset time reaches, control electric expansion valve rotates backward the described first default step number with will be electric
Sub- expansion valve zero setting；After controlling the electric expansion valve zero setting, controls the electric expansion valve and rotates forward to initial opening,
And keep the initial opening；
The setup module, for the attribute for resetting mark to be set as having resetted.
8. the device for preventing electric expansion valve stuck as claimed in claims 6 or 7, which is characterized in that the judgment module packet
It includes：Acquiring unit, the reset for obtaining air conditioner electric expansion valve identify；
Judging unit, for when the reset is identified as and does not reset mark, or being obtained not successfully in the second preset time
When being identified to the reset, judge that air conditioner electric expansion valve does not reset；Judging unit is additionally operable to be identified as in air conditioner reset
When having resetted mark, judge that air conditioner electric expansion valve has resetted.
9. the device for preventing electric expansion valve stuck as claimed in claims 6 or 7, which is characterized in that air conditioner for the first time on
When electric, the control module, the compressor for being additionally operable to interval third preset time control air conditioner opens operation, and to give tacit consent to frequency
Rate or the operation of pre-set frequency.
10. the device for preventing electric expansion valve stuck as claimed in claims 6 or 7, which is characterized in that be in fast in air conditioner
When inspection pattern, the reset operation of electric expansion valve is executed.
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| CN201610442974.4A CN106123413B (en) | 2016-06-17 | 2016-06-17 | Prevent the method and device that electric expansion valve is stuck |
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| CN201610442974.4A CN106123413B (en) | 2016-06-17 | 2016-06-17 | Prevent the method and device that electric expansion valve is stuck |
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| CN106123413B true CN106123413B (en) | 2018-08-14 |
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| CN106524361A (en) * | 2016-12-09 | 2017-03-22 | 广东美的制冷设备有限公司 | Air-conditioner and starting method thereof |
| CN111609199B (en) * | 2019-02-25 | 2022-05-24 | 青岛经济技术开发区海尔热水器有限公司 | Adjusting method of proportional valve and proportional valve |
| CN109945563B (en) * | 2019-03-22 | 2021-11-19 | 广东美的制冷设备有限公司 | Multi-split air conditioning system and method and device for initializing electronic expansion valve thereof |
| CN110094858B (en) * | 2019-04-11 | 2021-04-23 | 海信（山东）空调有限公司 | Control method and device of air conditioner electronic expansion valve, computer product and air conditioner |
| CN110094841B (en) * | 2019-04-15 | 2021-11-02 | 青岛海尔空调电子有限公司 | Electronic expansion valve control method for air conditioner and air conditioner |
| CN110500697B (en) * | 2019-08-15 | 2021-02-23 | 海信（山东）空调有限公司 | Air conditioner, air deflector of air conditioner and control method and device of fan of indoor unit |
| CN111207482B (en) * | 2020-01-07 | 2020-12-29 | 珠海格力电器股份有限公司 | Air conditioner electronic expansion valve clamping adjustment control method and air conditioner |
| CN111412684B (en) * | 2020-04-20 | 2020-12-15 | 珠海格力电器股份有限公司 | Throttling element failure control method and air conditioner |
| CN113654213B (en) * | 2021-08-18 | 2022-10-28 | 珠海格力电器股份有限公司 | Air conditioner control method and air conditioner |
| CN114001503A (en) * | 2021-10-27 | 2022-02-01 | 珠海格力电器股份有限公司 | Electronic expansion valve failure determination method, electronic expansion valve failure determination module, electronic expansion valve failure determination equipment and computer readable medium |
| CN117249610A (en) * | 2022-06-09 | 2023-12-19 | 青岛海尔空调器有限总公司 | Air conditioner electronic expansion valve resetting method and system and air conditioner |
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