CN105157158B - The guard method of frequency-variable module in air-conditioning - Google Patents
The guard method of frequency-variable module in air-conditioning Download PDFInfo
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- CN105157158B CN105157158B CN201510379429.0A CN201510379429A CN105157158B CN 105157158 B CN105157158 B CN 105157158B CN 201510379429 A CN201510379429 A CN 201510379429A CN 105157158 B CN105157158 B CN 105157158B
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Abstract
The invention discloses a kind of guard method of frequency-variable module in air-conditioning, comprise the following steps：S1:Detect the temperature Tf of frequency-variable module；S2:Detect the operational mode of air-conditioning；If the operational mode of air-conditioning is heating mode, obtain the interior machine blower fan of air-conditioning current gear and suction superheat and continue in next step；S3:Judge the scope residing for the temperature Tf of frequency-variable module；If the temperature Tf of frequency-variable module is more than or equal to first threshold, and is less than or equal to Second Threshold, machine blower fan gear instruction in generation increase；If now the current gear of interior machine blower fan has arrived most high-grade, determine whether suction superheat is more than or equal to the default degree of superheat；If suction superheat is more than or equal to the default degree of superheat, generation reduces the instruction of the gear of outer machine blower fan；And if suction superheat is less than the default degree of superheat, then outer machine blower fan downshift command is forbidden in generation.The guard method of frequency-variable module in air-conditioning according to embodiments of the present invention, enhance the safety and reliability of operation of air conditioner.
Description
Technical field
The present invention relates to household appliance technical field, in particular to a kind of guard method of frequency-variable module in air-conditioning.
Background technology
In correlation technique, during operation of air conditioner, the too high normal operation that can influence air-conditioning of temperature of frequency-variable module is therefore, anxious
A kind of regulation frequency-variable module temperature is needed to be at the method in safety value.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is in a kind of guard method for making frequency-variable module temperature be in frequency-variable module in the air-conditioning in safety value of proposition.
According to a first aspect of the present invention in the air-conditioning of embodiment frequency-variable module guard method, comprise the following steps：S1:Inspection
Survey the temperature Tf of frequency-variable module；S2:Detect the operational mode of the air-conditioning；If the operational mode of the air-conditioning is heating mould
Formula, then obtain the interior machine blower fan of the air-conditioning current gear and suction superheat and continue in next step；S3:Judge frequency-variable module
Temperature Tf residing for scope；If the temperature Tf of the frequency-variable module is more than or equal to first threshold, and less than or equal to the
Two threshold values, then generate the instruction of machine blower fan gear in increase；If the current gear of now described interior machine blower fan arrived it is most high-grade,
Then determine whether the suction superheat is more than or equal to the default degree of superheat；If the suction superheat is more than or waited
In the default degree of superheat, then generation reduces the instruction of the gear of the outer machine blower fan；And if the suction superheat is small
In the default degree of superheat, then the instruction of outer machine blower fan downshift is forbidden in generation.
The guard method of frequency-variable module in air-conditioning according to embodiments of the present invention, frequency-variable module temperature can be made to be in safety value
It is interior, enhance the safety and reliability of operation of air conditioner.
Preferably, step S3 also includes, if the temperature Tf of the frequency-variable module is less than or equal to the 3rd threshold value, with certainly
The interior machine blower fan and outer machine blower fan are controlled by control mode；If the temperature Tf of the frequency-variable module is more than the 3rd threshold value
And when being less than the first threshold, then increase adjusts the regularization condition of the interior machine blower fan and the outer machine blower fan.
Preferably, the interior machine blower fan regularization condition is that interior machine blower fan downshift command is forbidden in generation, the outer machine blower fan
Regularization condition is that outer machine blower fan upshift command is forbidden in generation.
Preferably, the interior machine blower fan and outer machine blower fan is controlled to refer to interior machine blower fan and outer machine blower fan with free control mode
Rotating speed can arbitrarily lift.
Preferably, step S3 also includes, if the temperature Tf of the frequency-variable module is more than Second Threshold, generation shutdown refers to
Order.
Preferably, in addition to：S4：In step s 2, if the operational mode of the air-conditioning is refrigeration mode, institute is obtained
State the current gear of the interior machine blower fan of air-conditioning；S5:Judge the scope residing for the temperature Tf of frequency-variable module；If the frequency-variable module
Temperature Tf be more than or equal to first threshold, and be less than or equal to Second Threshold, then generation increases the instruction of outer machine blower fan gear；
If the current gear of now described interior machine blower fan has arrived most high-grade, the instruction of the gear of the generation reduction interior machine blower fan.
Preferably, step S5 also includes：If the temperature Tf of the frequency-variable module is less than or equal to the 3rd threshold value, with certainly
The interior machine blower fan and outer machine blower fan are controlled by control mode；If the temperature Tf of the frequency-variable module is more than the 3rd threshold value
And when being less than the first threshold, then increase adjusts the regularization condition of the interior machine blower fan and the outer machine blower fan.
Preferably, step S5 also includes：If the temperature Tf of the frequency-variable module is more than Second Threshold, generation shutdown refers to
Order.
According to a second aspect of the present invention in the air-conditioning of embodiment frequency-variable module guard method, comprise the following steps：A1:Inspection
Survey the temperature Tf of frequency-variable module；A2:Detect the operational mode of the air-conditioning；If the operational mode of the air-conditioning is refrigeration mould
Formula, then obtain the current gear of the interior machine blower fan of the air-conditioning；A3:Judge the scope residing for the temperature Tf of frequency-variable module；If
The temperature Tf of the frequency-variable module is more than or equal to first threshold, and is less than or equal to Second Threshold, then generation increases outer machine wind
The instruction of machine gear；If the current gear of now described outer machine blower fan has arrived most high-grade, the generation reduction interior machine blower fan
Gear instruction.
Preferably, also include in step S3：If the temperature Tf of the frequency-variable module is less than or equal to the 3rd threshold value, with
Free control mode controls the interior machine blower fan and outer machine blower fan；If the temperature Tf of the frequency-variable module is more than the 3rd threshold
When being worth and being less than the first threshold, then increase adjusts the regularization condition of the interior machine blower fan and the outer machine blower fan.
Preferably, the interior machine blower fan regularization condition is that interior machine blower fan upshift command is forbidden in generation, the outer machine blower fan
Regularization condition is that outer machine blower fan downshift command is forbidden in generation.
Preferably, also include in step A3：If the temperature Tf of the frequency-variable module is more than Second Threshold, generation is shut down
Instruction.
Brief description of the drawings
Fig. 1 is the guard method of frequency-variable module in the air-conditioning of embodiment according to a first aspect of the present invention.
Fig. 2 is the guard method of frequency-variable module in the air-conditioning of embodiment according to a second aspect of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The guard method of frequency-variable module in the air-conditioning of the embodiment of the present invention is described referring to Fig. 1 to Fig. 2.
As shown in figure 1, according to a first aspect of the present invention in the air-conditioning of embodiment frequency-variable module guard method, air-conditioning start
Afterwards, run the guard method of frequency-variable module in the air-conditioning if the temperature-sensitive bag failure of frequency-variable module, the guard method include with
Lower step：
S1 the temperature Tf of frequency-variable module) is detected.
S2 the operational mode of air-conditioning) is detected, if the operational mode of air-conditioning is heating mode, obtains the interior machine of air-conditioning
The current gear and suction superheat of blower fan.Wherein, suction superheat refers to the suction superheat at the compressor of air-conditioning.
S3 the scope residing for the temperature Tf of frequency-variable module) is judged, if the temperature Tf of frequency-variable module is more than or equal to first
Threshold value e, and be less than or equal to Second Threshold f, then generate the instruction of machine blower fan gear in increase.That is, work as first threshold e
During≤Tf≤Second Threshold f, the temperature of frequency-variable module has surpassed safe temperature, if interior machine blower fan does not arrive most high-grade, generates
The instruction of machine gear increases turning for interior machine blower fan so that interior machine blower fan increases by one grade on the basis of original gear in increase
Speed, the radiating of air-conditioning is thus strengthened, reduce the energy loss of complete machine, and then be minimized the temperature of frequency-variable module.
If now the current gear of interior machine blower fan has arrived most high-grade, determine whether suction superheat whether be more than or
Equal to the default degree of superheat.That is, when the rotating speed of interior machine blower fan can not raise again, the rotating speed of the outer machine blower fan of reduction can be passed through
To reduce the energy consumption of complete machine, and then further reduce the purpose of frequency-variable module temperature.
If suction superheat is more than or equal to the default degree of superheat, generation reduces the instruction of the gear of outer machine blower fan.
That is when suction superheat is more than or equal to the default degree of superheat, the rotating speed of outer machine blower fan can be reduced.
If suction superheat is less than the default degree of superheat, the instruction of outer machine blower fan downshift is forbidden in generation.That is, such as
Fruit suction superheat is less than the default degree of superheat, then allows outer machine blower fan upshift or gear constant.
Thus, during air-conditioning work when the temperature-sensitive bag failure of frequency-variable module, system is run by above-mentioned guard method to make
The rotating speed of machine blower fan to be to accelerate air-conditioning heat dissipation speed in accelerating under heat pattern, reduces the rotating speed of outer machine blower fan to reduce the energy of air-conditioning
The temperature of frequency-variable module in air-conditioning, is thus reduced in safety value by amount loss, improves the reliability and stably of system operation
Property；It is moreover, it is contemplated that too low and influence the normal operation of air-conditioning heating circulation and ask to suction superheat is likely to occur under heating mode
Topic, is detected to suction superheat, when it is more than the default degree of superheat, can implement to reduce outer machine rotation speed of fan operation, when it
During less than the default degree of superheat, outer machine rotation speed of fan is not allowed to reduce, to avoid reduction of the suction superheat with outer machine rotation speed of fan
And reduce, thus on the basis of air-conditioning normal operation is ensured, reach the effect of protection frequency-variable module.
Further, step S3 also includes, in addition to：If the temperature Tf of frequency-variable module is more than the 3rd threshold value g and is less than
During first threshold e, then increase the regularization condition of machine blower fan and outer machine blower fan in adjustment；If the temperature Tf of frequency-variable module be less than or
Equal to the 3rd threshold value g, then with machine blower fan and outer machine blower fan in the control of free control mode.
Specifically, the regularization condition of interior machine blower fan is that interior machine blower fan downshift command, the adjustment bar of outer machine blower fan are forbidden in generation
Part is that outer machine blower fan upshift command is forbidden in generation.That is, when the temperature of frequency-variable module is more than the 3rd threshold value g and less than first
During threshold value e, it is easy to exceed safety value although the temperature of frequency-variable module is in safety value.Now, interior machine wind is forbidden in generation
Machine downshift command and forbid the outer machine blower fan upshift command of outer machine blower fan, only allow the gear of machine blower fan or holding in system increase
Interior machine blower fan gear is constant, and only allows the rotating speed for the rotating speed or outer machine blower fan of holding for reducing outer machine blower fan constant.Thus, lead to
Cross and regularization condition is applied to the rotational speed regulation of interior machine blower fan and outer machine blower fan, to control the temperature of frequency-variable module not raise, and then
It is that temperature is maintained in safety value to make frequency-variable module.
Specifically, turn of interior machine blower fan and outer machine blower fan is referred to machine blower fan in the control of free control mode and outer machine blower fan
Speed can be lifted arbitrarily.That is, when the temperature of frequency-variable module is less than or equal to the 3rd threshold value g, the temperature of frequency-variable module now
Degree is not only existed in the range of safety value, and the adjustment in short-term of interior machine blower fan and outer machine rotation speed of fan will not make the temperature of frequency-variable module
Degree exceeds safety value.
In certain embodiments, step S3 also includes, in addition to：If the temperature Tf of frequency-variable module is more than Second Threshold f,
Then generate halt instruction.That is, when the temperature of frequency-variable module is more than Second Threshold f, the temperature of frequency-variable module is too high,
Through more than system adjustable section category, therefore halt instruction is generated, control air conditioner is shut down.
Wherein, at predetermined time intervals, the temperature Tf of frequency-variable module and the operational mode of air-conditioning are detected and judges frequency-variable module
Temperature residing for scope, and the scope according to residing for it sends command adapted thereto.
In certain embodiments, the guard method of frequency-variable module also includes in air-conditioning：S4：In step s 2, it is if described
The operational mode of air-conditioning is refrigeration mode, then obtains the current gear of the interior machine blower fan of the air-conditioning.S5:Judge frequency-variable module
Scope residing for temperature Tf；If the temperature Tf of the frequency-variable module is more than or equal to first threshold, and less than or equal to second
Threshold value, then generation increase the instruction of outer machine blower fan gear；If the current gear of now described interior machine blower fan arrived it is most high-grade,
Generation reduces the instruction of the gear of the interior machine blower fan.
Preferably, step S5 also includes：If the temperature Tf of the frequency-variable module is less than or equal to the 3rd threshold value, with certainly
The interior machine blower fan and outer machine blower fan are controlled by control mode；If the temperature Tf of the frequency-variable module is more than the 3rd threshold value
And when being less than the first threshold, then increase adjusts the regularization condition of the interior machine blower fan and the outer machine blower fan.
Preferably, step S5 also includes：If the temperature Tf of the frequency-variable module is more than Second Threshold, generation shutdown refers to
Order.
As shown in Fig. 2 according to the guard method of frequency-variable module in the air-conditioning of second inventive embodiments of the invention, including it is following
Step：
A1:Detect the temperature Tf of frequency-variable module；
A2:Detect the operational mode of the air-conditioning；If the operational mode of the air-conditioning is refrigeration mode, described in acquisition
The current gear of the interior machine blower fan of air-conditioning；
A3:Judge the scope residing for the temperature Tf of frequency-variable module；
If the temperature Tf of frequency-variable module is more than or equal to first threshold e, and is less than or equal to Second Threshold f, then generate
The instruction of the outer machine blower fan gear of increase；If now the current gear of outer machine blower fan has arrived most high-grade, machine wind in generation reduction
The instruction of the gear of machine.That is, when air-conditioning is run in cooling mode, if the temperature of frequency-variable module is more than or equal to
First threshold e and when being less than or equal to Second Threshold f, improves the rotating speed of machine blower fan in the rotating speed and/or reduction of outer machine blower fan just
The radiating of air-conditioning can be accelerated, reduce the energy consumption of air-conditioning, and then reduce the temperature of frequency-variable module, be in safety value.
Thus, during air-conditioning work when the temperature-sensitive bag failure of frequency-variable module, system is run by above-mentioned guard method to make
Accelerate the rotating speed of outer machine blower fan under chill formula to accelerate air-conditioning heat dissipation speed, the rotating speed of machine blower fan is to reduce the energy of air-conditioning in reduction
The temperature of frequency-variable module in air-conditioning, is thus reduced in safety value by amount loss, improves the reliability and stably of system operation
Property；Moreover, preferentially adjusting the rotating speed of outer machine blower fan, the radiating rate of condenser is enhanced, preferably reduces the energy consumption of air-conditioning,
Reach the effect reduced in frequency-variable module temperature value safety value.
Further, in cooling mode, step A3 also includes：If the temperature Tf of frequency-variable module is less than or equal to the 3rd
Threshold value g, then with machine blower fan and outer machine blower fan in the control of free control mode；If the temperature Tf of frequency-variable module is more than the 3rd threshold value
G and when being less than first threshold e, the then regularization condition of machine blower fan and outer machine blower fan in increase adjustment.
Wherein, interior machine blower fan regularization condition is that interior machine blower fan upshift command is forbidden in generation, and the regularization condition of outer machine blower fan is
Outer machine blower fan downshift command is forbidden in generation.That is, when the temperature Tf of frequency-variable module is more than the 3rd threshold value g and is less than the first threshold
During value e, although the temperature of frequency-variable module is in safety value, interior machine rotation speed of fan rises or outer machine rotation speed of fan may decline
The temperature of frequency-variable module can be made to exceed safety value, therefore, send the instruction for forbidding interior machine blower fan to upshift and forbid outer machine to downshift,
It is controlled in so that frequency-variable module is temperature in safety value.
In certain embodiments, also include in step A3：If the temperature Tf of frequency-variable module is more than Second Threshold f, give birth to
Into halt instruction.That is, when the temperature of frequency-variable module is more than Second Threshold f, the temperature of frequency-variable module is too high, has surpassed
System adjustable section category is crossed, therefore generates halt instruction, control air conditioner is shut down.
No matter it is real in cooling mode or in a heating mode, after sending upshift command, corresponding rotation speed of fan rise
One grade or multi gear, after sending downshift command, corresponding rotation speed of fan reduces a gear or multi gear.Interior machine blower fan refers to indoor set
Blower fan, outer machine blower fan refer to the blower fan of outdoor unit.Wherein, in cooling mode, interior machine blower fan refers to the wind at evaporator
Machine, outer machine blower fan refer to the blower fan at condenser；In a heating mode, interior machine blower fan refers to the extension set at condenser, outside
Machine blower fan refers to the blower fan at evaporator.
It is appreciated that the guard method of the frequency-variable module of air-conditioning in cooling mode and the frequency conversion of air-conditioning in a heating mode
Module is that guard method can apply on same air-conditioning jointly, with by being adjusted to interior machine blower fan and outer machine rotation speed of fan
Whole, monitoring, the cooling to frequency-variable module is realized, and then ensure frequency-variable module temperature on the premise of frequency-variable module temperature-sensitive bag fails
All the time in safety value.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (12)
1. the guard method of frequency-variable module in a kind of air-conditioning, it is characterised in that comprise the following steps：
S1:Detect the temperature Tf of frequency-variable module；
S2:The operational mode of the air-conditioning is detected, if the operational mode of the air-conditioning is heating mode, obtains the air-conditioning
Interior machine blower fan current gear and suction superheat and continue in next step；
S3:Judge the scope residing for the temperature Tf of frequency-variable module；
If the temperature Tf of the frequency-variable module is more than or equal to first threshold, and is less than or equal to Second Threshold, then generation increases
Add the instruction of interior machine blower fan gear；
If the current gear of now described interior machine blower fan has arrived most high-grade, determine whether the suction superheat is big
In or equal to the default degree of superheat；
If the suction superheat is more than or equal to the default degree of superheat, generation reduces the finger of the gear of outer machine blower fan
Order；And
If the suction superheat is less than the default degree of superheat, the instruction of outer machine blower fan downshift is forbidden in generation.
2. the guard method of frequency-variable module in air-conditioning according to claim 1, it is characterised in that step S3 also includes,
If the temperature Tf of the frequency-variable module is less than or equal to the 3rd threshold value, the interior machine wind is controlled with free control mode
Machine and outer machine blower fan；
If the temperature Tf of the frequency-variable module is more than the 3rd threshold value and is less than the first threshold, increase adjustment institute
State the regularization condition of interior machine blower fan and the outer machine blower fan.
3. the guard method of frequency-variable module in air-conditioning according to claim 2, it is characterised in that the interior machine blower fan adjustment
Condition is that interior machine blower fan downshift command is forbidden in generation, and the regularization condition of the outer machine blower fan forbids outer machine blower fan upshift to refer to for generation
Order.
4. the guard method of frequency-variable module in air-conditioning according to claim 2, it is characterised in that with free control mode control
Make the interior machine blower fan and outer machine blower fan refers to that interior machine blower fan and the rotating speed of outer machine blower fan can be lifted arbitrarily.
5. the guard method of frequency-variable module in air-conditioning according to claim 1, it is characterised in that step S3 also includes,
If the temperature Tf of the frequency-variable module is more than Second Threshold, halt instruction is generated.
6. the guard method of frequency-variable module in the air-conditioning according to any one of claim 1-5, it is characterised in that also wrap
Include：
S4：In step s 2, if the operational mode of the air-conditioning is refrigeration mode, the interior machine blower fan of the air-conditioning is obtained
Current gear；
S5:Judge the scope residing for the temperature Tf of frequency-variable module；If the temperature Tf of the frequency-variable module is more than or equal to first
Threshold value, and be less than or equal to Second Threshold, then generation increases the instruction of outer machine blower fan gear；
If the current gear of now described interior machine blower fan has arrived most high-grade, the finger of the gear of the generation reduction interior machine blower fan
Order.
7. the guard method of frequency-variable module in air-conditioning according to claim 6, it is characterised in that step S5 also includes：
If the temperature Tf of the frequency-variable module is less than or equal to the 3rd threshold value, the interior machine wind is controlled with free control mode
Machine and outer machine blower fan；
If the temperature Tf of the frequency-variable module is more than the 3rd threshold value and is less than the first threshold, increase adjustment institute
State the regularization condition of interior machine blower fan and the outer machine blower fan.
8. the guard method of frequency-variable module in air-conditioning according to claim 6, it is characterised in that step S5 also includes：Such as
The temperature Tf of frequency-variable module described in fruit is more than Second Threshold, then generates halt instruction.
9. the guard method of frequency-variable module in a kind of air-conditioning, it is characterised in that comprise the following steps：
A1:Detect the temperature Tf of frequency-variable module；
A2:Detect the operational mode of the air-conditioning；If the operational mode of the air-conditioning is refrigeration mode, the air-conditioning is obtained
Interior machine blower fan current gear；
A3:Judge the scope residing for the temperature Tf of frequency-variable module；
If the temperature Tf of the frequency-variable module is more than or equal to first threshold, and is less than or equal to Second Threshold, then generation increases
Add the instruction of outer machine blower fan gear；
If the current gear of now described outer machine blower fan has arrived most high-grade, the finger of the gear of the generation reduction interior machine blower fan
Order.
10. the guard method of frequency-variable module in air-conditioning according to claim 9, it is characterised in that also include in step A3：
If the temperature Tf of the frequency-variable module is less than or equal to the 3rd threshold value, the interior machine wind is controlled with free control mode
Machine and outer machine blower fan；
If the temperature Tf of the frequency-variable module is more than the 3rd threshold value and is less than the first threshold, increase adjustment institute
State the regularization condition of interior machine blower fan and the outer machine blower fan.
11. the guard method of frequency-variable module in air-conditioning according to claim 10, it is characterised in that the interior machine blower fan is adjusted
Shelf-regulating Conditions are that interior machine blower fan upshift command is forbidden in generation, and the regularization condition of the outer machine blower fan forbids outer machine blower fan to downshift for generation
Instruction.
12. the guard method of frequency-variable module in air-conditioning according to claim 9, it is characterised in that also include in step A3：
If the temperature Tf of the frequency-variable module is more than Second Threshold, halt instruction is generated.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105650812B (en) * | 2016-01-04 | 2019-06-28 | 广东美的暖通设备有限公司 | Air-conditioning indoor fan control method and air-conditioning |
| CN108895627B (en) * | 2018-05-29 | 2021-03-12 | 广东美的暖通设备有限公司 | Control method of indoor unit |
| CN110887164B (en) * | 2018-09-10 | 2020-12-29 | 青岛海尔空调器有限总公司 | Air conditioner and control method for preventing overhigh temperature of power module of outdoor unit of air conditioner |
| CN110260525B (en) * | 2019-06-10 | 2021-09-17 | 广东海悟科技有限公司 | Control method and device of fan and computer readable storage medium |
| CN110986262A (en) * | 2019-11-15 | 2020-04-10 | 珠海格力电器股份有限公司 | Control method of variable frequency air conditioner, computer readable storage medium and air conditioner |
| CN114279056B (en) * | 2021-12-29 | 2023-05-23 | 青岛海信日立空调系统有限公司 | Machine room air conditioner |
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