CN105972771A - Defrosting control method and device for air conditioner - Google Patents
Defrosting control method and device for air conditioner Download PDFInfo
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- CN105972771A CN105972771A CN201610374801.3A CN201610374801A CN105972771A CN 105972771 A CN105972771 A CN 105972771A CN 201610374801 A CN201610374801 A CN 201610374801A CN 105972771 A CN105972771 A CN 105972771A
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- conditioner
- defrosting
- air
- control
- described air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a defrosting control method for an air conditioner. The defrosting control method comprises the following processes: when the air conditioner receives a defrosting command triggered on the basis of a defrosting control on a control terminal or a defrosting control on a control panel, acquiring the current state of the air conditioner; and if the current state of the air conditioner is a standby state or the air conditioner works under a heating mode, controlling the air conditioner to switch into a defrosting mode for working. The invention also provides a defrosting control device for the air conditioner, and solves the technical problem that a user cannot actively start up the defrosting mode as required.
Description
Technical field
The present invention relates to air-conditioner technical field, particularly relate to defrosting control method and the dress of a kind of air-conditioner
Put.
Background technology
During domestic heat pump air conditioner device heating operation in the winter time, outdoor heat exchanger, as vaporizer, absorbs heat,
When outdoor environment temperature is too low or during heating operation overlong time, can cause the refrigerant pipe of outdoor heat exchanger
Temperature less than zero degree, the moisture in outdoor air, at outdoor heat exchanger surface condensation Cheng Shuan, even can produce
Raw icing phenomenon, after outdoor heat exchanger frosting, the heat transfer resistance between coolant and the air in pipeline can be big
Big increase, and then affect the heating effect of whole heat pump air conditioner, cause indoor heating efficiency to decline.
Therefore, during using air-conditioner to run heating mode, if outdoor unit heat exchanger there occurs
Frosting, can cause air conditioner heat-production efficiency to decline, it is impossible to for the heat that indoor offer is enough, even can go out
The situation of existing cancel closedown.Existing solution is that the temperature to outdoor heat exchanger outlet detects,
When detecting that outlet temperature is less than uniform temperature, automatically air-conditioner is switched to defrosting mode, i.e. control
Air-conditioner refrigerating operaton, utilizes the coolant of High Temperature High Pressure to enter outdoor unit heat exchanger, changes with being attached to off-premises station
Frost layer on hot device carries out heat exchange to defrost, if the condition of outlet temperature not up to defrosting, the most not
Can defrost, user cannot the most actively open defrosting mode.
Summary of the invention
The present invention provides defrosting control method and the device of a kind of air-conditioner, and its main purpose is to solve to use
The technical problem of defrosting mode cannot be the most actively opened at family.
For achieving the above object, the present invention provides the defrosting control method of a kind of air-conditioner, this air-conditioner
Defrosting control method includes:
When air-conditioner receives based on the defrosting control controlling in terminal or based on the defrosting on control panel
During the defrosting instruction that control triggers, obtain the current state of described air-conditioner；
If the current state of described air-conditioner is standby or runs with heating mode, then control described air-conditioning
Device switches to defrosting mode and runs.
Alternatively, after the step of the running status of the described air-conditioner of described acquisition, removing of described air-conditioner
Frost control method further comprises the steps of:
If the current state of described air-conditioner be except heating mode or standby in addition to other states time, defeated
Go out information, to point out shielding defrosting instruction under air-conditioner current state described in user.
Alternatively, the defrosting control method of described air-conditioner further comprises the steps of:
During described air-conditioner runs with defrosting mode, the control instruction that shielding receives.
Alternatively, if the current state of the described air-conditioner obtained is to run with heating mode, the most described control
Before making the step that described air-conditioner switches to defrosting mode operation, the defrosting control method of described air-conditioner
Also include:
Obtain the delivery temperature of compressor；
When the delivery temperature of the described compressor got is less than preset temperature, increase described compressor
Running frequency；
After described compressor runs preset duration with the running frequency after increasing, or at described compressor
Delivery temperature more than or equal to described preset temperature time, perform control described air-conditioner switch to defrost mould
The step that formula is run.
Alternatively, if the current state of the described air-conditioner obtained is standby, the described air-conditioning of the most described control
After device switches to the step that defrosting mode runs, the defrosting control method of described air-conditioner also includes:
After described air-conditioner exits defrosting mode, control described air-conditioner according to default operational factor with system
Heat pattern is run.
Additionally, for achieving the above object, the present invention also provides for the defrosting of a kind of air-conditioner and controls device, should
The defrosting of air-conditioner controls device and includes:
Acquisition module, for receiving based on the defrosting control controlled in terminal or based on control when air-conditioner
During the defrosting instruction that the defrosting control on panel processed triggers, obtain the current state of described air-conditioner；
Control module, if the current state for described air-conditioner is standby or runs with heating mode,
Then control described air-conditioner and switch to defrosting mode operation.
Alternatively, the defrosting control device of described air-conditioner also includes:
Sending module, if for the current state of described air-conditioner be except heating mode or standby in addition to
During other states, export information, to point out shielding defrosting under air-conditioner current state described in user to refer to
Order.
Alternatively, described control module, it is additionally operable to during described air-conditioner runs with defrosting mode,
The control instruction that shielding receives.
Alternatively, described acquisition module, if being additionally operable to the current state of the described air-conditioner of acquisition for system
Heat pattern is run, then obtain the delivery temperature of compressor；
The defrosting of described air-conditioner controls device and also includes:
Adjustment module, for when the delivery temperature of the described compressor got is less than preset temperature, increasing
The running frequency of big described compressor；
Described control module, is additionally operable to run preset duration at described compressor with the running frequency after increasing
After, or when the delivery temperature of described compressor is more than or equal to described preset temperature, control described sky
Adjust device to switch to defrosting mode to run.
Alternatively, described control module, it is additionally operable to after described air-conditioner exits defrosting mode, controls institute
State air-conditioner to run with heating mode according to default operational factor.
The defrosting control method of the air-conditioner that the present invention proposes and device, when air-conditioner receives based on control
During the defrosting instruction that the defrosting control in terminal or the defrosting control on the control panel of air-conditioner trigger,
Judge whether the current state of air-conditioner is standby or runs with heating mode, the most then control air-conditioning
Device enters defrosting mode and runs, and defrosts for outdoor heat exchanger, and therefore, user can base the most at any time
Defrosting control on the control panel of the defrosting control controlled in terminal or air-conditioner actively triggers defrosting
Instruction, solves user and cannot the most actively open the technical problem of defrosting mode.
Accompanying drawing explanation
Fig. 1 is the flow chart of the defrosting control method first embodiment of air-conditioner of the present invention；
Fig. 2 be air-conditioner of the present invention defrosting control method in the structural representation of heat pump air conditioner；
Fig. 3 is the high-level schematic functional block diagram of the defrosting control device first embodiment of air-conditioner of the present invention；
Fig. 4 is the high-level schematic functional block diagram of defrosting control device second embodiment of air-conditioner of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
Determine the present invention.
The present invention provides the defrosting control method of a kind of air-conditioner.With reference to shown in Fig. 1, for air-conditioning of the present invention
The flow chart of the defrosting control method first embodiment of device.
In the present embodiment, the defrosting control method of this air-conditioner includes:
Step S10, when air-conditioner receives based on the defrosting control controlled in terminal or based on control panel
On defrosting control trigger defrosting instruction time, obtain the current state of described air-conditioner.
It should be noted that the defrosting control method of the air-conditioner that the present embodiment proposes is applicable to have and heat merit
The air-conditioner of energy, such as heat pump air conditioner.In following example, as a example by heat pump air conditioner, to defrosting
Control method illustrates.
Shown in Fig. 2, for the structural representation of a kind of heat pump air conditioner 100.This heat pump air conditioner 100
Including compressor 10, cross valve 20, outdoor heat exchanger 30, throttle part 40, indoor heat exchanger 50,
Wherein, throttle part 40 can be electric expansion valve.Air-conditioner in heating operations, compressor 10
The High Temperature High Pressure coolant that air vent 11 is discharged, after cross valve 20 commutates, flows into indoor heat exchanger 50,
By the ducting system of indoor heat exchanger 50 to the lasting heat of indoor offer, coolant is from indoor heat exchange simultaneously
Being condensed in device 50, temperature has declined, then flows into throttle part 40, drops through throttle part 40
Vapour-liquid mixing coolant after pressure enters outdoor heat exchanger 30, and coolant evaporates in outdoor heat exchanger 30, evaporation
After low-temp low-pressure coolant through cross valve 20 commutate after, return to the gas returning port 12 of compressor 10, so
Circulation, for the heat that indoor offer is lasting.In the case of outdoor temperature is relatively low in the winter time, owing to outdoor is changed
Hot device 30 as vaporizer, absorbs heat, causes the steam in air can be at the table of outdoor heat exchanger 30
Face frosting forms frost layer.
Based on above-mentioned air conditioner structure, the control method of following description defrosting:
Can arrange defrosting control on the remote controller of air-conditioning or control panel, this defrosting control can be
Physical button, or the virtual key on touch screen is set, user triggers defrosting instruction by this button,
Or, in other embodiments, user can set up near-field communication realization by controlling terminal and air-conditioner
Control to air-conditioner, controls the remote controller that terminal can be air-conditioner, it is also possible to be mobile phone, flat board electricity
The mobile terminals such as brain.For example, it is possible to provide a application software run on mobile terminals, Yong Hutong
Cross this application software realize and air-conditioner between mutual, the display interface of software is provided with virtual by
Key is as defrosting control.Even if when air-conditioner does not automatically turn on defrosting mode, user can also pass through
Above-mentioned defrosting control actively triggers defrosting instruction.
Step S20, if the current state of described air-conditioner is standby or runs with heating mode, then controls
Described air-conditioner switches to defrosting mode and runs.
Air-conditioner, when receiving the defrosting instruction that user actively triggers, obtains the current state of air-conditioner,
When only the current state at air-conditioner is standby or runs with heating mode, just above-mentioned defrosting is instructed
Respond, control air-conditioner entrance defrosting mode and defrost.
If current air-conditioner be in except heating mode or standby in addition to other patterns, such as refrigeration mode,
Dehumidification modes etc., then the defrosting instruction to receiving does not responds, and exports information, with prompting
Under user's current state, air-conditioner is in the state of shielding defrosting instruction, does not defrosts.Such as, exist
The information of " cannot be carried out under current state defrosting " can be shown on the display floater of air-conditioner, meanwhile,
Can be sent out prompt tone prompting user；Or, above-mentioned information is pushed to mobile terminal, it is to avoid
User continues based on the defrosting control controlling in terminal or triggers based on the defrosting control on control panel
Defrosting instruction.
Further, in one embodiment, about controlling the concrete of air-conditioner entrance defrosting mode operation
Mode is: close compressor, stops the operation of heating mode, switches cross valve, to change compressor row
The flow direction of the coolant that QI KOU flows out, restarts compressor, the aperture of electric expansion valve is regulated extremely simultaneously
Maximum, the High Temperature High Pressure coolant in compressor flows into outdoor heat exchanger, and air-conditioner enters refrigeration mode and runs,
Close outdoor fan, after refrigerating operaton a period of time, indoor fan can be also switched off, such as, cutting
Change cross valve direction and restart compressor, after compressor operating a period of time, close chamber's inner blower,
To be distributed by heat in indoor set, wherein, the operation time can be arranged as required to by user, for
After the temperature avoiding indoor heat exchanger reduces, indoor set blowing cold air, should not arrange long, such as,
Could be arranged to the 30-60 second.
In other embodiments, it is also possible to defrost in other way, such as, at compressor
Air vent is connected pipeline with arranging before the outlet of outdoor heat exchanger, and arranges check valve connecting on pipeline,
When needs defrost, only need open check valve, make the coolant of exhaust outlet of compressor High Temperature High Pressure change from outdoor
The outlet of hot device enters outdoor heat exchanger, defrosts for outdoor heat exchanger.
Further, during air-conditioner runs with defrosting mode, the control instruction that shielding receives.
After air-conditioner enters defrosting mode, the control instruction received is not responded, until air-conditioner is held
The defrosting action that row one is complete, after exiting defrosting mode, recovers the sound to the control instruction received
Should.
Further, in order to prevent maloperation, for being arranged on remote controller or the control panel of air-conditioning
Defrosting button, when only the time at Continued depression exceedes the duration of setting, just can be effectively, such as,
When user's Continued depression defrosting button reaches more than 3 seconds, remote controller or control terminal send to air-conditioner
Defrosting instruction.
The defrosting control method of the air-conditioner that the present embodiment proposes, when air-conditioner receives based on controlling terminal
On defrosting control or air-conditioner control panel on defrosting control trigger defrosting instruction time, it is judged that
Whether the current state of air-conditioner is standby or runs with heating mode, the most then control air-conditioner and enter
Entering defrosting mode to run, defrost for outdoor heat exchanger, therefore, user can be the most at any time based on control
Defrosting control in terminal processed or the defrosting control on the control panel of air-conditioner actively trigger defrosting and refer to
Order, solves user and cannot the most actively open the technical problem of defrosting mode.
Second embodiment of the defrosting control method of air-conditioner of the present invention is proposed based on first embodiment.At this
In embodiment, if the current state of the described air-conditioner obtained is to run with heating mode, then step S30
Before, the method is further comprising the steps of:
Obtain the delivery temperature of compressor；
When the delivery temperature of the described compressor got is less than preset temperature, increase described compressor
Running frequency；
After described compressor runs preset duration with the running frequency after increasing, or at described compressor
Delivery temperature more than or equal to described preset temperature time, perform step S30.
Owing to air-conditioner is after long-play heating mode, outdoor heat exchanger frosting, cause off-premises station to produce
Raw cold cannot be pulled away, and causes back liquid temp low, and low pressure occurs in the gas returning port of compressor, and then leads
Causing compressor high pressure to reduce, the refrigerant temperature that exhaust outlet of compressor is discharged is not high enough, can affect the effect of defrosting
Rate, when defrosting mode runs to the time set, possible frost layer is gone out the most completely.
Therefore, if the current state of the described air-conditioner obtained is to run with heating mode, pressure is first obtained
The delivery temperature of contracting machine, if delivery temperature is relatively low, then increases the running frequency of compressor, can be to work as
Increase by 10～20Hz in front running frequency, or pre-set a higher running frequency, will be current
The running frequency of compressor directly regulate to the running frequency pre-set.Delivery temperature when compressor
More than or equal to preset temperature, or compressor is after the running frequency operation preset duration after increasing,
Controlling air-conditioner and enter defrosting mode operation, to improve compressor exhaust temperature before defrosting, raising removes
Frost efficiency.Wherein, the running frequency pre-set and preset duration can be by user's joining according to air-conditioner
Putting or obtain according to simulation experiment data, such as, preset duration can be 5 minutes.
Further, receive based on the defrosting control controlled in terminal or based on chain of command when air-conditioner
During the defrosting instruction that the defrosting control on plate triggers, air-conditioner is currently at standby, the most directly controls air-conditioning
Device enters defrosting mode and runs, and compressor runs according to the frequency under the defrosting mode pre-set.
User can pre-set the condition exiting defrosting mode, when defrosting reaches the condition arranged, then
Exit defrosting mode.Such as, pre-set the operation duration of defrosting mode, when the operation of defrosting mode
When length reaches the operation duration pre-set, exit defrosting mode.Or, during defrosting, in real time
The outlet temperature of sensing chamber's external heat exchanger, when detect outlet temperature be more than pre-set when exiting temperature,
Exit defrosting mode.
Further, if when receiving defrosting instruction, air-conditioner runs with heating mode, then stores
Current operational factor, such as, compressor operating frequency, indoor fan rotating speed, target temperature, wind-guiding
The parameters such as plate air outlet angle.After exiting defrosting mode, control the air-conditioner operational factor fortune according to storage
Row heating mode.
Further, receive based on the defrosting control controlled in terminal or based on chain of command when air-conditioner
During the defrosting instruction that the defrosting control on plate triggers, air-conditioner is currently at standby, then after defrosting completes,
Control air-conditioner to run with heating mode according to default operational factor.So, for a user, if
When seriously shutdown occurring due to outdoor heat exchanger frosting, directly can send defrosting instruction to air-conditioner,
Air-conditioner runs automatically into heating mode after defrosting completes, it is not necessary to user reopens air-conditioner again,
And send control instruction.
The present invention also proposes the defrosting of a kind of air-conditioner and controls device.
With reference to shown in Fig. 3, for the functional module of the defrosting control device first embodiment of air-conditioner of the present invention
Schematic diagram.
In this embodiment, the defrosting control device of this air-conditioner includes:
Acquisition module 60, for when air-conditioner receive based on the defrosting control controlled in terminal or based on
During the defrosting instruction that the defrosting control on control panel triggers, obtain the current state of described air-conditioner.
It should be noted that the defrosting of the air-conditioner that the present embodiment proposes controls device and is applicable to have and heats merit
The air-conditioner of energy, such as heat pump air conditioner.In following example, as a example by heat pump air conditioner, to defrosting
Control device to illustrate.
Shown in Fig. 2, for the structural representation of a kind of heat pump air conditioner 100.This heat pump air conditioner 100
Including compressor 10, cross valve 20, outdoor heat exchanger 30, throttle part 40, indoor heat exchanger 50,
Wherein, throttle part 40 can be electric expansion valve.Air-conditioner in heating operations, compressor 10
The High Temperature High Pressure coolant that air vent 11 is discharged, after cross valve 20 commutates, flows into indoor heat exchanger 50,
By the ducting system of indoor heat exchanger 50 to the lasting heat of indoor offer, coolant is from indoor heat exchange simultaneously
Being condensed in device 50, temperature has declined, then flows into throttle part 40, drops through throttle part 40
Vapour-liquid mixing coolant after pressure enters outdoor heat exchanger 30, and coolant evaporates in outdoor heat exchanger 30, evaporation
After low-temp low-pressure coolant through cross valve 20 commutate after, return to the gas returning port 12 of compressor 10, so
Circulation, for the heat that indoor offer is lasting.In the case of outdoor temperature is relatively low in the winter time, owing to outdoor is changed
Hot device 30 as vaporizer, absorbs heat, causes the steam in air can be at the table of outdoor heat exchanger 30
Face frosting forms frost layer.
Based on above-mentioned air conditioner structure, the control process of following description defrosting:
Can arrange defrosting control on the remote controller of air-conditioning or control panel, this defrosting control can be
Physical button, or the virtual key on touch screen is set, user triggers defrosting instruction by this button,
Or, in other embodiments, user can set up near-field communication realization by controlling terminal and air-conditioner
Control to air-conditioner, controls the remote controller that terminal can be air-conditioner, it is also possible to be mobile phone, flat board electricity
The mobile terminals such as brain.For example, it is possible to provide a application software run on mobile terminals, Yong Hutong
Cross this application software realize and air-conditioner between mutual, the display interface of software is provided with virtual by
Key is as defrosting control.Even if when air-conditioner does not automatically turn on defrosting mode, user can also pass through
Above-mentioned defrosting control actively triggers defrosting instruction.
Control module 70, if the current state for described air-conditioner is standby or runs with heating mode,
Then control described air-conditioner and switch to defrosting mode operation.
Air-conditioner is when receiving the defrosting instruction that user actively triggers, and acquisition module 60 obtains air-conditioner
Current state, when only the current state at air-conditioner is standby or runs with heating mode, just to upper
Stating defrosting instruction to respond, control module 70 controls air-conditioner entrance defrosting mode and defrosts.
If current air-conditioner be in except heating mode or standby in addition to other patterns, such as refrigeration mode,
Dehumidification modes etc., then the defrosting instruction received is not responded by control module 70, controls the transmission of device
Module output information, to point out under user's current state, air-conditioner is in the shape of shielding defrosting instruction
State, does not defrosts.Such as, can show on the display floater of air-conditioner " cannot under current state
Defrost " information, at the same time it can also be send prompt tone prompting user；Or, sending module will
Above-mentioned information is pushed to mobile terminal, it is to avoid user continue based on the defrosting control controlled in terminal or
The defrosting instruction that person triggers based on the defrosting control on control panel.
Further, in one embodiment, about controlling the concrete of air-conditioner entrance defrosting mode operation
Mode is: control module 70 close compressor, stops the operation of heating mode, switches cross valve, to change
The flow direction of the coolant that variable compression machine air vent flows out, restarts compressor, simultaneously by electric expansion valve
Aperture regulation is to maximum, and the High Temperature High Pressure coolant in compressor flows into outdoor heat exchanger, and air-conditioner enters system
Cold mode operation, closes outdoor fan, also can be closed by indoor fan after refrigerating operaton a period of time
Close, such as, switching cross valve direction and restarting compressor, after compressor operating a period of time,
Close chamber's inner blower, to be distributed by heat in indoor set, wherein, the time of operation can be by user's root
Arrange according to needs, after reducing in order to avoid the temperature of indoor heat exchanger, indoor set blowing cold air, should not set
Put long, for example, it is possible to be set to the 30-60 second.
In other embodiments, control module 70 can also defrost in other way, such as,
It is connected pipeline at exhaust outlet of compressor with arranging before the outlet of outdoor heat exchanger, and sets on pipeline connecting
Put check valve, when needs defrost, control module 70 open check valve, make exhaust outlet of compressor high temperature high
The coolant of pressure enters outdoor heat exchanger from outdoor heat exchanger outlet, defrosts for outdoor heat exchanger.
Further, during air-conditioner runs with defrosting mode, control module 70 shielding receives
Control instruction.After air-conditioner enters defrosting mode, the control instruction received is not responded,
Until air-conditioner performs complete defrosting action, after exiting defrosting mode, recover receiving
The response of control instruction.
Further, in order to prevent maloperation, for being arranged on remote controller or the control panel of air-conditioning
Defrosting button, when only the time at Continued depression exceedes the duration of setting, just can be effectively, such as,
When user's Continued depression defrosting button reaches more than 3 seconds, remote controller or control terminal send to air-conditioner
Defrosting instruction.
The defrosting of the air-conditioner that the present embodiment proposes controls device, when air-conditioner receives based on controlling terminal
On defrosting control or air-conditioner control panel on defrosting control trigger defrosting instruction time, it is judged that
Whether the current state of air-conditioner is standby or runs with heating mode, the most then control air-conditioner and enter
Entering defrosting mode to run, defrost for outdoor heat exchanger, therefore, user can be the most at any time based on control
Defrosting control in terminal processed or the defrosting control on the control panel of air-conditioner actively trigger defrosting and refer to
Order, solves user and cannot the most actively open the technical problem of defrosting mode.
Second embodiment of the defrosting control device of air-conditioner of the present invention is proposed based on first embodiment.At this
In embodiment, acquisition module 60, if being additionally operable to the current state of the described air-conditioner of acquisition for heat mould
Formula is run, then obtain the delivery temperature of compressor.
With reference to shown in Fig. 4, the defrosting of air-conditioner controls device and also includes:
Adjustment module 80, is used for when the delivery temperature of the described compressor got is less than preset temperature,
Increase the running frequency of described compressor.
Control module 70, is additionally operable to after described compressor runs preset duration with the running frequency after increasing,
Or when the delivery temperature of described compressor is more than or equal to described preset temperature, control described air-conditioner
Switch to defrosting mode run.
Owing to air-conditioner is after long-play heating mode, outdoor heat exchanger frosting, cause off-premises station to produce
Raw cold cannot be pulled away, and causes back liquid temp low, and low pressure occurs in the gas returning port of compressor, and then leads
Causing compressor high pressure to reduce, the refrigerant temperature that exhaust outlet of compressor is discharged is not high enough, can affect the effect of defrosting
Rate, when defrosting mode runs to the time set, possible frost layer is gone out the most completely.
Therefore, if the current state of the described air-conditioner obtained is to run with heating mode, acquisition module
60 delivery temperatures first obtaining compressor, if delivery temperature is relatively low, then adjustment module 80 increases compressor
Running frequency, can be to increase by 10～20Hz in current running frequency, or pre-set one relatively
High running frequency, the running frequency of current compressor is directly regulated to pre-setting by adjustment module 80
Running frequency.When the delivery temperature of compressor is more than or equal to preset temperature, or compressor is to increase
After running frequency run after preset duration, control module 70 controls air-conditioner and enters defrosting mode and run.
Wherein, the running frequency pre-set and preset duration can be by user according to the configurations of air-conditioner or root
Obtaining according to simulation experiment data, such as, preset duration can be 5 minutes.
Further, receive based on the defrosting control controlled in terminal or based on chain of command when air-conditioner
During the defrosting instruction that the defrosting control on plate triggers, air-conditioner is currently at standby, then control module 70 is straight
Connecing control air-conditioner and enter defrosting mode operation, compressor is according to the frequency under the defrosting mode pre-set
Run.
User can pre-set the condition exiting defrosting mode, when defrosting reaches the condition arranged, then
Control module 70 controls air-conditioner and exits defrosting mode.Such as, pre-set the operation duration of defrosting mode,
When the operation duration of defrosting mode reaches the operation duration pre-set, exit defrosting mode.Or,
During defrosting, the outlet temperature of real-time sensing chamber external heat exchanger, pre-when detecting that outlet temperature is more than
First arrange when exiting temperature, exit defrosting mode.
Further, if when receiving defrosting instruction, air-conditioner runs with heating mode, then stores
Current operational factor, such as, compressor operating frequency, indoor fan rotating speed, target temperature, wind-guiding
The parameters such as plate air outlet angle.After exiting defrosting mode, control the air-conditioner operational factor fortune according to storage
Row heating mode.
Further, receive based on the defrosting control controlled in terminal or based on chain of command when air-conditioner
During the defrosting instruction that the defrosting control on plate triggers, air-conditioner is currently at standby, then after defrosting completes,
Control air-conditioner to run with heating mode according to default operational factor.So, for a user, if
When seriously shutdown occurring due to outdoor heat exchanger frosting, directly can send defrosting instruction to air-conditioner,
Air-conditioner runs automatically into heating mode after defrosting completes, it is not necessary to user reopens air-conditioner also again
Send control instruction.
It should be noted that in this article, term " include ", " comprising " or its any other variant
Be intended to comprising of nonexcludability so that include the process of a series of key element, method, article or
Person's device not only includes those key elements, but also includes other key elements being not expressly set out, or also
Including the key element intrinsic for this process, method, article or device.In the feelings not having more restriction
Under condition, statement " including ... " key element limited, it is not excluded that include this key element process,
Method, article or device there is also other identical element.
It addition, the description relating to " first ", " second ", " the 3rd " etc. in invention only describes purpose,
And it is not intended that indicate or imply its relative importance or the implicit number indicating indicated technical characteristic
Amount.Thus, define " first ", the feature of " second " can be expressed or implicitly include at least one
Individual this feature.It addition, the technical scheme between each embodiment can be combined with each other, but must be with
Based on those of ordinary skill in the art are capable of, when conflicting or nothing occurs in the combination of technical scheme
People should think that the combination of this technical scheme does not exists, the most not in the protection of application claims when method realizes
Within the scope of.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every
Utilize equivalent structure or equivalence flow process conversion that description of the invention and accompanying drawing content made, or directly or
Connect and be used in other relevant technical fields, be the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. the defrosting control method of an air-conditioner, it is characterised in that the defrosting controlling party of described air-conditioner
Method includes:
When air-conditioner receives based on the defrosting control controlling in terminal or based on the defrosting on control panel
During the defrosting instruction that control triggers, obtain the current state of described air-conditioner；
If the current state of described air-conditioner is standby or runs with heating mode, then control described air-conditioning
Device switches to defrosting mode and runs.
The defrosting control method of air-conditioner the most according to claim 1, it is characterised in that described in obtain
After the step of the running status taking described air-conditioner, the defrosting control method of described air-conditioner also includes step
Rapid:
If the current state of described air-conditioner be except heating mode or standby in addition to other states time, defeated
Go out information, to point out shielding defrosting instruction under air-conditioner current state described in user.
The defrosting control method of air-conditioner the most according to claim 1, it is characterised in that described sky
The defrosting control method adjusting device further comprises the steps of:
During described air-conditioner runs with defrosting mode, the control instruction that shielding receives.
The defrosting control method of air-conditioner the most according to any one of claim 1 to 3, its feature
It is, if the current state of the described air-conditioner obtained is to run with heating mode, described in the most described control
Before air-conditioner switches to the step that defrosting mode runs, the defrosting control method of described air-conditioner also includes:
Obtain the delivery temperature of compressor；
When the delivery temperature of the described compressor got is less than preset temperature, increase described compressor
Running frequency；
After described compressor runs preset duration with the running frequency after increasing, or at described compressor
Delivery temperature more than or equal to described preset temperature time, perform control described air-conditioner switch to defrost mould
The step that formula is run.
The defrosting control method of air-conditioner the most according to any one of claim 1 to 3, its feature
Being, if the current state of the described air-conditioner obtained is standby, the described air-conditioner of the most described control switches
After the step that defrosting mode runs, the defrosting control method of described air-conditioner also includes:
After described air-conditioner exits defrosting mode, control described air-conditioner according to default operational factor with system
Heat pattern is run.
6. the defrosting of an air-conditioner controls device, it is characterised in that the defrosting of described air-conditioner controls dress
Put and include:
Acquisition module, for receiving based on the defrosting control controlled in terminal or based on control when air-conditioner
During the defrosting instruction that the defrosting control on panel processed triggers, obtain the current state of described air-conditioner；
Control module, if the current state for described air-conditioner is standby or runs with heating mode,
Then control described air-conditioner and switch to defrosting mode operation.
The defrosting of air-conditioner the most according to claim 6 controls device, it is characterised in that described sky
The defrosting adjusting device controls device and also includes:
Sending module, if for the current state of described air-conditioner be except heating mode or standby in addition to
During other states, export information, to point out shielding defrosting under air-conditioner current state described in user to refer to
Order.
The defrosting of air-conditioner the most according to claim 6 controls device, it is characterised in that described control
Molding block, is additionally operable to during described air-conditioner runs with defrosting mode, the control that shielding receives
Instruction.
9. control device, its feature according to the defrosting of the air-conditioner according to any one of claim 6 to 8
It is, described acquisition module, if being additionally operable to the current state of the described air-conditioner of acquisition for heating mode
Run, then obtain the delivery temperature of compressor；
The defrosting of described air-conditioner controls device and also includes:
Adjustment module, for when the delivery temperature of the described compressor got is less than preset temperature, increasing
The running frequency of big described compressor；
Described control module, is additionally operable to run preset duration at described compressor with the running frequency after increasing
After, or when the delivery temperature of described compressor is more than or equal to described preset temperature, control described sky
Adjust device to switch to defrosting mode to run.
The defrosting of air-conditioner the most according to claim 6 controls device, it is characterised in that described
Control module, is additionally operable to after described air-conditioner exits defrosting mode, controls described air-conditioner according to presetting
Operational factor is run with heating mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610374801.3A CN105972771A (en) | 2016-05-30 | 2016-05-30 | Defrosting control method and device for air conditioner |
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| CN201610374801.3A CN105972771A (en) | 2016-05-30 | 2016-05-30 | Defrosting control method and device for air conditioner |
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| CN109283885A (en) * | 2018-09-26 | 2019-01-29 | 郑州市泰科工控自动化有限公司 | Meterial accumulation starts method, apparatus and stabilized soil mixing station control system |
| CN110207315A (en) * | 2019-06-06 | 2019-09-06 | 珠海格力电器股份有限公司 | Defrosting method for air conditioner outdoor unit and air conditioner system |
| CN110553439A (en) * | 2019-08-29 | 2019-12-10 | 浙江中广电器股份有限公司 | Control method for preventing freezing during refrigeration start of air source variable frequency heat pump (cold water) unit |
| CN111425991A (en) * | 2020-04-03 | 2020-07-17 | 广东美的暖通设备有限公司 | Control method, air conditioning system, and computer-readable storage medium |
| CN112524747A (en) * | 2020-12-08 | 2021-03-19 | 海信（广东）空调有限公司 | Defrosting control method of air conditioner, indoor unit of air conditioner and air conditioner remote controller |
| CN114738968A (en) * | 2022-03-31 | 2022-07-12 | 青岛海尔空调器有限总公司 | Method and device for preventing misoperation of air conditioner |
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| CN109283885A (en) * | 2018-09-26 | 2019-01-29 | 郑州市泰科工控自动化有限公司 | Meterial accumulation starts method, apparatus and stabilized soil mixing station control system |
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| CN112524747A (en) * | 2020-12-08 | 2021-03-19 | 海信（广东）空调有限公司 | Defrosting control method of air conditioner, indoor unit of air conditioner and air conditioner remote controller |
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| CN114738968B (en) * | 2022-03-31 | 2023-11-21 | 青岛海尔空调器有限总公司 | Air conditioner misoperation prevention method and device |
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