CN107631519A - Automatic oil return control method and device for air conditioning unit, storage medium and air conditioning unit - Google Patents
Automatic oil return control method and device for air conditioning unit, storage medium and air conditioning unit Download PDFInfo
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- CN107631519A CN107631519A CN201710711491.4A CN201710711491A CN107631519A CN 107631519 A CN107631519 A CN 107631519A CN 201710711491 A CN201710711491 A CN 201710711491A CN 107631519 A CN107631519 A CN 107631519A
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000003860 storage Methods 0.000 title claims abstract description 11
- 238000004378 air conditioning Methods 0.000 title abstract description 5
- 238000001704 evaporation Methods 0.000 claims abstract description 49
- 230000006870 function Effects 0.000 claims description 67
- 238000004590 computer program Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The invention provides an automatic oil return control method and device for an air conditioning unit, a storage medium and the air conditioning unit, wherein the method comprises the following steps: judging whether the unit meets an automatic oil return condition or not; and when the unit meets the automatic oil return condition, performing automatic oil return control on the unit according to the evaporation pressure of the unit. The scheme provided by the invention can automatically control oil return of the unit according to the evaporation pressure of the unit, and avoid damage to a compressor of the unit due to insufficient oil lubrication.
Description
Technical field
The present invention relates to control field, more particularly to a kind of air-conditioner set automatic oil return control method, device, storage medium
And air-conditioner set.
Background technology
Existing large-size air conditioning unit operation is after a while or under some working environments, it is easy to occurs because of oil level mistake
Unit autoprotection caused by low, now compressor does not have enough oil lubrications, if opening compressor by force, to compressor
Infringement is irreversible, and is shut down and oil level does not recover not driving machine in a period of time, causes user can not the normal use machine
Group.Because most of user does not know to the correlated performance of unit, it is not known that how to make unit oil return, sometimes in order to not
Influence to use, user is directly again toward refueling in compressor, causes the increase of inconvenient for use and cost.
The content of the invention
A kind of the defects of it is a primary object of the present invention to overcome above-mentioned prior art, there is provided air-conditioner set automatic oil return control
Method, apparatus, storage medium and air-conditioner set processed, to solve, the oil level of air-conditioner set in the prior art is too low to be caused to compressor
The problem of infringement.
One aspect of the present invention provides a kind of air-conditioner set automatic oil return control method, including：Whether judge the unit
Meet automatic oil return condition；When the unit meets automatic oil return condition, according to the evaporating pressure of the unit to the machine
Group carries out automatic oil return control.
Alternatively, the automatic oil return condition includes：The oil level switch of the unit disconnected for second scheduled time；Wherein,
The oil level of the unit is less than oil level switch during the second predetermined altitude and disconnected.
Alternatively, judge whether the unit meets automatic oil return condition, opened in the automatic oil return function of unit
In the case of carry out；Methods described also includes：When the oil level of the unit is less than the first predetermined altitude, the unit oneself is opened
Dynamic oil return function；Or when the oil level of the unit is less than the first predetermined altitude, sends and open carrying for automatic oil return function
Wake up, when receiving the instruction for opening automatic oil return function, open the automatic oil return function of the unit.
Alternatively, the evaporating pressure according to the unit carries out automatic oil return control to the unit, including：Every
First scheduled time detected the evaporating pressure of the unit；When the evaporating pressure is less than or equal to the first predetermined threshold, increase
The aperture of the big throttling arrangement；And/or when the evaporating pressure is more than or equal to the second predetermined threshold, reduce the section
Flow the aperture of device；And/or when the evaporating pressure is more than the first predetermined threshold and is less than the second predetermined threshold, keep institute
State the aperture of throttling arrangement.
Alternatively, methods described also includes：Reach default time when the time that automatic oil return control is carried out to the unit
During oily control time, terminate the automatic oil return control to the unit, and/or close the automatic oil return function of the unit；With/
Or, when the oil level of the unit is higher than three predetermined altitudes, terminate the automatic oil return control to the unit, and/or close
The automatic oil return function of the unit.
Alternatively, methods described also includes：Receive default oil return control time.
Another aspect of the present invention provides a kind of air-conditioner set automatic oil return control device, including：Judging unit, for sentencing
Whether the unit that breaks meets automatic oil return condition；Control unit, for when the unit meets automatic oil return condition, according to
The evaporating pressure of the unit carries out automatic oil return control to the unit.
Alternatively, the automatic oil return condition includes：The oil level switch of the unit disconnected for second scheduled time；Wherein,
The oil level of the unit is less than oil level switch during the second predetermined altitude and disconnected.
Alternatively, the judging unit judges whether the unit meets automatic oil return condition, is returned in the automatic of unit
Oily function is carried out in the case of opening；Described device also includes：First opening unit, for when the oil level of the unit is less than the
During one predetermined altitude, the automatic oil return function of the unit is opened；Or reminding unit, for when the oil level of the unit it is low
When the first predetermined altitude, the prompting for opening automatic oil return function is sent；And second opening unit, for opening receiving
During the instruction of automatic oil return function, the automatic oil return function of the unit is opened.
Alternatively, described control unit, including：Detection unit, for detecting the unit every first scheduled time
Evaporating pressure；Adjustment unit, for when the evaporating pressure is less than or equal to the first predetermined threshold, increasing the throttling arrangement
Aperture；And/or when the evaporating pressure is more than or equal to the second predetermined threshold, reduce the aperture of the throttling arrangement；
And/or when the evaporating pressure is more than the first predetermined threshold and is less than the second predetermined threshold, keep opening for the throttling arrangement
Degree.
Alternatively, described control unit is additionally operable to：Reach default when the time that automatic oil return control is carried out to the unit
Oil return control time when, terminate to the control of the automatic oil return of the unit, and/or close the automatic oil return work(of the unit
Energy；And/or when the oil level of the unit is higher than three predetermined altitudes, terminate to control the automatic oil return of the unit, and/
Or close the automatic oil return function of the unit.
Alternatively, described device also includes：Receiving unit, for receiving default oil return control time.
Another aspect of the invention provides a kind of computer-readable recording medium, is stored thereon with computer program, described
The step of foregoing any methods described is realized when program is executed by processor.
Further aspect of the present invention provides a kind of air-conditioner set, including processor, memory and storage are on a memory
The computer program that can be run on a processor, the step of foregoing any methods described is realized during the computing device described program
Suddenly.
Further aspect of the present invention provides a kind of air-conditioner set, including foregoing any described device.
Technique according to the invention scheme, can be in the case where the automatic oil return function of unit be opened, according to the machine
The evaporating pressure of group carries out automatic oil return control to the unit, avoids the compressor of unit because being made without enough oil lubrications
Into infringement；And the present invention when the oil level of unit be less than certain altitude, send unlatching automatic oil return function prompting, so as to
The automatic oil return function of unit is opened at family, or, automatic oil return function is directly opened when the oil level of unit is less than certain altitude,
The problem of avoiding user not knowing how to make unit oil return, or when opening automatic oil return.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the method schematic diagram of an embodiment of air-conditioner set automatic oil return control method provided by the invention；
Fig. 2 has been that the unit is entered according to a kind of evaporating pressure according to the unit of embodiment of the present invention
The step flow chart of row automatic oil return control；
Fig. 3 is the method schematic diagram of another embodiment of air-conditioner set automatic oil return control method provided by the invention；
Fig. 4 is the method schematic diagram of the another embodiment of air-conditioner set automatic oil return control method provided by the invention；
Fig. 5 is the method schematic diagram of the another embodiment of air-conditioner set automatic oil return control method provided by the invention；
Fig. 6 is the structural representation of an embodiment of air-conditioner set automatic oil return control device provided by the invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out under the premise of creative work the every other embodiment obtained, belong to the scope of protection of the invention.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
Fig. 1 is the method schematic diagram of an embodiment of air-conditioner set automatic oil return control method provided by the invention.
As shown in figure 1, according to one embodiment of present invention, the automatic oil return control method comprises at least step S110
With step S120.
Step S110, judges whether the unit meets automatic oil return condition.
The automatic oil return condition includes：The oil level switch of the unit disconnected for second scheduled time.Specifically, the machine
The oil level of group is the oil level of compressor, when the oil level of the unit is less than the second predetermined altitude, the oil level switch of the unit
It will disconnect, when the oil level switch of the unit disconnected for second scheduled time, the unit meets automatic oil return condition, starts
Perform the automatic oil return control of the unit, i.e. perform step S120.
Step S120, when the unit meets automatic oil return condition, according to the evaporating pressure of the unit to the machine
Group carries out automatic oil return control.
Specifically, the aperture of the throttling arrangement by adjusting unit is higher to oil return efficiency by the evaporating pressure regulation of unit
Range of condition in, wherein, the evaporating pressure is specifically as follows evaporator outlet to the pressure of compressor chamber, can be by steaming
The outlet of hair device sets pressure sensor to be detected.Aperture by increasing throttling arrangement improves the evaporating pressure of unit, passes through
The aperture for reducing throttling arrangement reduces the evaporating pressure of unit.Wherein, the throttling arrangement is specifically as follows compressor and evaporation
Throttling arrangement between device, the throttling arrangement are specifically as follows electric expansion valve.
Fig. 2 has been that the unit is entered according to a kind of evaporating pressure according to the unit of embodiment of the present invention
The step flow chart of row automatic oil return control.As shown in Fig. 2 step S120 specifically includes following steps：
Step S121, the evaporating pressure of the unit is detected every first scheduled time.
Specifically, whether the evaporating pressure for detecting the unit is more than the first predetermined threshold and is less than the second predetermined threshold；
I.e., if meet P1 ＜ P ＜ P2, wherein, P is the evaporating pressure of unit, and P1 is the first predetermined threshold, and P2 is the second predetermined threshold
Value；If it is not, then (P≤P1) performs step S122 when the evaporating pressure is less than or equal to the first predetermined threshold, and/or work as institute
State when evaporating pressure is more than or equal to the second predetermined threshold (P >=P2) and perform step S123；Kept if so, then performing step S124
The aperture of the throttling arrangement.
Step S122, when the evaporating pressure is less than or equal to the first predetermined threshold, increase opening for the throttling arrangement
Degree.
That is, during P≤P1, the aperture of the throttling arrangement is increased into the first predetermined aperture (EXV1).
Step S123, when the evaporating pressure is more than or equal to the second predetermined threshold, reduce opening for the throttling arrangement
Degree.
That is, during P >=P2, the aperture of the throttling arrangement is reduced into the second predetermined aperture (EXV2).
Step S124, when the evaporating pressure is more than the first predetermined threshold and is less than the second predetermined threshold, described in holding
The aperture of throttling arrangement.
That is, when evaporating pressure meets P1 ＜ P ＜ P2, keep the aperture of the throttling arrangement constant.
Fig. 3 is the method schematic diagram of another embodiment of air-conditioner set automatic oil return control method provided by the invention.Fig. 4
It is the method schematic diagram of the another embodiment of air-conditioner set automatic oil return control method provided by the invention.
As shown in Figure 3 or Figure 4, based on above-described embodiment, judge whether the unit meets automatic oil return condition, be in machine
The automatic oil return function of group is carried out in the case of opening, i.e., described unit performs step S110 again after the unlatching of automatic oil return function
With step S120, therefore, methods described also includes step S100 (with reference to shown in figure 3), or also includes step S101 and step
S102 (with reference to shown in figure 4).Wherein, the automatic oil return function of the unit can be opened by user, or can be automatically turned on.
As shown in figure 3, in the step s 100, when the oil level of the unit is less than the first predetermined altitude, open the machine
The automatic oil return function of group.
That is, the level height of compressor is detected in real time, is automatically turned on when the oil level of compressor is less than the first predetermined altitude
The automatic oil return function of unit.Wherein, first predetermined altitude is higher than second predetermined altitude.
As shown in figure 4, in step S101, when the oil level of the unit is less than the first predetermined altitude, unlatching is sent certainly
The prompting of dynamic oil return function.
That is, when the oil level for detecting unit is less than the first predetermined altitude, issue the user with and open automatic oil return function
Remind, so that user determines whether to open automatic oil return function.
In step s 102, when receiving the instruction for opening automatic oil return function, the automatic oil return of the unit is opened
Function.
User can remind according to the automatic oil return to be determined whether to open automatic oil return function, however, it is determined that opens automatic oil return
Function, can be with the automatic oil return function of the manually opened unit, such as by operating automatic oil return button opens unit
Automatic oil return function.When receiving the instruction for opening automatic oil return function, the automatic oil return function of the unit is opened.
Fig. 5 is the method schematic diagram of the another embodiment of air-conditioner set automatic oil return control method provided by the invention.Such as
Shown in Fig. 5, based on above-mentioned any embodiment, methods described also includes step S130 and/or step S140.
Step S130, when the time that automatic oil return control is carried out to the unit reaching default oil return control time,
Terminate the automatic oil return control to the unit and/or close the automatic oil return function of the unit.
The oil return control time is that the time of oil return control is carried out to the unit, i.e. in the oil return control time
It is interior, automatic oil return control is carried out to the unit according to the evaporating pressure of the unit, when to unit progress automatic oil return
When the time of control reaches the oil return control time, terminate the automatic oil return control to the unit, and/or, it can close
The unit automatic oil return function.Wherein, the oil return control time can be pre-set by user, or according to unit
Service condition pre-set.
Step S140, when the oil level of the unit is higher than three predetermined altitudes, terminate the automatic oil return to the unit
Control, and/or close the automatic oil return function of the unit.
That is, when elevated three predetermined altitude of the oil level of the unit, terminate to return the automatic of the unit
Oil control, and/or close the automatic oil return function of the unit.Wherein, it is predetermined to be more than described second for the 3rd predetermined altitude
Highly, or, the 3rd predetermined altitude is more than or equal to first predetermined altitude.
Based on above-described embodiment, methods described also include receive default oil return control time the step of.Wherein, described time
Oily control time can be pre-set by user, therefore can receive the oil return control time of user preset, so as in machine
When group meets oil return condition, automatic oil return control is carried out according to the default oil return control time.
Fig. 6 is the structural representation of an embodiment of air-conditioner set automatic oil return control device provided by the invention.Such as Fig. 6
Shown, automatic oil return control device 100 includes：Judging unit 110 and control unit 120.
Judging unit 110 is used to judge whether the unit meets automatic oil return condition；Control unit 120 is used for when described
When unit meets automatic oil return condition, automatic oil return control is carried out to the unit according to the evaporating pressure of the unit.Wherein,
The oil level of the unit is the oil level of compressor, and the automatic oil return condition includes：The oil level switch of the unit disconnects second
The scheduled time；Wherein, the oil level of the unit is less than oil level switch during the second predetermined altitude and disconnected.
Further, described control unit 120 includes detection unit and adjustment unit.
Detection unit, for detecting the evaporating pressure of the unit every first scheduled time；Adjustment unit, for working as
When stating evaporating pressure and being less than or equal to the first predetermined threshold, increase the aperture of the throttling arrangement；And/or when the vapor pres- sure
When power is more than or equal to the second predetermined threshold, reduce the aperture of the throttling arrangement；And/or when the evaporating pressure is more than the
One predetermined threshold and when being less than the second predetermined threshold, keeps the aperture of the throttling arrangement.The evaporating pressure is specifically as follows
Evaporator outlet, can be by setting pressure sensor to be detected to the pressure of compressor chamber in evaporator outlet.The throttling
Device is specifically as follows the throttling arrangement between compressor and evaporator, and the throttling arrangement is specifically as follows electric expansion valve.
Based on above-described embodiment, in an alternative embodiment of the invention, the judging unit 110 judges whether the unit is full
Sufficient automatic oil return condition, carried out in the case where the automatic oil return function of unit is opened；The automatic oil return control device 100
Also include the first opening unit.First opening unit, for when the oil level of the unit is less than the first predetermined altitude, opening institute
State the automatic oil return function of unit.
Based on above-mentioned any embodiment, in still another embodiment of the process, whether the judging unit judges the unit
Meet automatic oil return condition, carried out in the case where the automatic oil return function of unit is opened；Described device also includes reminding list
Member and the second opening unit.Wherein, reminding unit, for when the oil level of the unit is less than the first predetermined altitude, sending out
Open the prompting of automatic oil return function；Second opening unit, for when receiving the instruction for opening automatic oil return function, opening institute
State the automatic oil return function of unit.
Based on above-mentioned any embodiment, in still another embodiment of the process, described control unit 120 is additionally operable to：When to institute
Time that unit carries out automatic oil return control is stated when reaching default oil return control time, terminates the automatic oil return to the unit
Control, and/or close the automatic oil return function of the unit；Further, described device also includes：Receiving unit, for connecing
Receive default oil return control time.Wherein, the oil return control time can be pre-set by user, therefore, Ke Yijie
Receive the oil return control time of user preset.
And/or based on above-mentioned any embodiment, in yet another embodiment of the invention, described control unit 120 is additionally operable to：
When the oil level of the unit is higher than three predetermined altitudes, terminate the automatic oil return control to the unit, and/or described in closing
The automatic oil return function of unit.
The automatic oil return control device and automatic oil return control method of the present invention corresponds to substantially, therefore refers to preceding method
Description in embodiment.
The present invention also provides a kind of computer-readable recording medium, is stored thereon with computer program, described program is located
The step of reason device realizes foregoing any methods described when performing.
The present invention also provides a kind of air-conditioner set, including processor, memory and storage can handled on a memory
The computer program run on device, the step of realizing foregoing any methods described during the computing device described program.
The present invention also provides a kind of air-conditioner set, including foregoing any described air-conditioner set automatic oil return control device.
Accordingly, scheme provided by the invention can be in the case where the automatic oil return function of air-conditioner set be opened, according to institute
The evaporating pressure for stating unit carries out automatic oil return control to the unit, avoids the compressor of unit because not enough is glossy
Cunning causes damage；And the present invention sends the prompting for opening automatic oil return function when the oil level of unit is less than certain altitude, with
Just user opens the automatic oil return function of unit, or, directly open automatic oil return when the oil level of unit is less than certain altitude
The problem of function, avoiding user and do not know how to make unit oil return, or when opening automatic oil return.
Function described herein can be implemented in hardware, by the software of computing device, firmware or its any combinations.
If implement in the software by computing device, then computer can be stored in using function as one or more instructions or code
Transmitted on readable media or via computer-readable media.Other examples and embodiment will in of the invention and appended right
Ask in the scope and spirit of book.For example, be attributed to the property of software, function described above can be used by processor,
Hardware, firmware, hardwired appoint the software implementation that the combination of whichever performs in these.In addition, each functional unit can integrate
In a processing unit or unit is individually physically present, can also two or more units be integrated in
In one unit.
In several embodiments provided herein, it should be understood that disclosed technology contents, others can be passed through
Mode is realized.Wherein, device embodiment described above is only schematical, such as the division of the unit, Ke Yiwei
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
Connect, can be electrical or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, as control fill
The part put can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the present invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included within scope of the presently claimed invention.
Claims (15)
- A kind of 1. air-conditioner set automatic oil return control method, it is characterised in that including：Judge whether the unit meets automatic oil return condition；When the unit meets automatic oil return condition, automatic oil return is carried out to the unit according to the evaporating pressure of the unit Control.
- 2. according to the method for claim 1, it is characterised in that the automatic oil return condition includes：The oil level of the unit Switched off for second scheduled time；Wherein, the oil level of the unit is less than oil level switch during the second predetermined altitude and disconnected.
- 3. method according to claim 1 or 2, it is characterised in that judge whether the unit meets automatic oil return condition, It is to be carried out in the case where the automatic oil return function of unit is opened；Methods described also includes：When the oil level of the unit is less than the first predetermined altitude, the automatic oil return function of the unit is opened；OrWhen the oil level of the unit is less than the first predetermined altitude, the prompting for opening automatic oil return function is sent, is being received out When opening the instruction of automatic oil return function, the automatic oil return function of the unit is opened.
- 4. according to the method described in claim any one of 1-3, it is characterised in that the evaporating pressure pair according to the unit The unit carries out automatic oil return control, including：The evaporating pressure of the unit is detected every first scheduled time；When the evaporating pressure is less than or equal to the first predetermined threshold, increase the aperture of the throttling arrangement；And/orWhen the evaporating pressure is more than or equal to the second predetermined threshold, reduce the aperture of the throttling arrangement；And/orWhen the evaporating pressure is more than the first predetermined threshold and is less than the second predetermined threshold, opening for the throttling arrangement is kept Degree.
- 5. according to the method for claim 3, it is characterised in that also include：When the time that automatic oil return control is carried out to the unit reaching default oil return control time, terminate to the unit Automatic oil return control, and/or close the automatic oil return function of the unit；And/orWhen the oil level of the unit is higher than three predetermined altitudes, terminate the automatic oil return control to the unit, and/or close The automatic oil return function of the unit.
- 6. according to the method for claim 5, it is characterised in that also include：Receive default oil return control time.
- A kind of 7. air-conditioner set automatic oil return control device, it is characterised in that including：Judging unit, for judging whether the unit meets automatic oil return condition；Control unit, for when the unit meets automatic oil return condition, according to the evaporating pressure of the unit to the machine Group carries out automatic oil return control.
- 8. device according to claim 7, it is characterised in that the automatic oil return condition includes：The oil level of the unit Switched off for second scheduled time；Wherein, the oil level of the unit is less than oil level switch during the second predetermined altitude and disconnected.
- 9. the device according to claim 7 or 8, it is characterised in that the judging unit judges whether the unit meets Automatic oil return condition, carried out in the case where the automatic oil return function of unit is opened；Described device also includes：First opening unit, returned for when the oil level of the unit is less than the first predetermined altitude, opening the automatic of the unit Oily function；OrReminding unit, carrying for automatic oil return function is opened for when the oil level of the unit is less than the first predetermined altitude, sending Wake up；And second opening unit, returned for when receiving the instruction for opening automatic oil return function, opening the automatic of the unit Oily function.
- 10. according to the device described in claim any one of 7-9, it is characterised in that described control unit, including：Detection unit, for detecting the evaporating pressure of the unit every first scheduled time；Adjustment unit, for when the evaporating pressure is less than or equal to the first predetermined threshold, increasing opening for the throttling arrangement Degree；And/or when the evaporating pressure is more than or equal to the second predetermined threshold, reduce the aperture of the throttling arrangement；And/or When the evaporating pressure is more than the first predetermined threshold and is less than the second predetermined threshold, the aperture of the throttling arrangement is kept.
- 11. device according to claim 9, it is characterised in thatDescribed control unit is additionally operable to：When the time that automatic oil return control is carried out to the unit, which reaches default oil return, to be controlled Between when, terminate to the control of the automatic oil return of the unit, and/or close the automatic oil return function of the unit；And/orWhen the oil level of the unit is higher than three predetermined altitudes, terminate the automatic oil return control to the unit, and/or close The automatic oil return function of the unit.
- 12. device according to claim 11, it is characterised in that also include：Receiving unit, for receiving default oil return Control time.
- 13. a kind of computer-readable recording medium, it is characterised in that be stored thereon with computer program, described program is processed Device realizes the step of claim 1-6 any methods describeds when performing.
- 14. a kind of air-conditioner set, it is characterised in that on a memory can be in processor including processor, memory and storage The computer program of upper operation, the step of claim 1-6 any methods describeds are realized during the computing device described program.
- 15. a kind of air-conditioner set, it is characterised in that including the device as described in claim 7-12 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711491.4A CN107631519B (en) | 2017-08-18 | 2017-08-18 | Automatic oil return control method and device for air conditioning unit, storage medium and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711491.4A CN107631519B (en) | 2017-08-18 | 2017-08-18 | Automatic oil return control method and device for air conditioning unit, storage medium and air conditioning unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107631519A true CN107631519A (en) | 2018-01-26 |
| CN107631519B CN107631519B (en) | 2020-03-17 |
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ID=61101493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710711491.4A Active CN107631519B (en) | 2017-08-18 | 2017-08-18 | Automatic oil return control method and device for air conditioning unit, storage medium and air conditioning unit |
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