CN106705303A - Defrosting control method and system and air conditioner - Google Patents

Abstract

The invention provides a defrosting control method and system and an air conditioner. The defrosting control method comprises the steps that the air conditioner detects system parameters under the heating mode; if the system parameters achieve the preset defrosting condition, a stop valve is controlled to be closed, and an electric heating part works; the work duration of the electric heating part is recorded, the temperature of a heat storage device is detected, the temperature T0 of the heat storage device after the first preset duration and the temperature Ti of the heat storage device after the second preset duration are recorded, if the temperature difference of the heat storage device is larger than the preset temperature difference, the electric heating part is controlled to stop working, the stop valve is started, a four-way valve is reversed to enable the air conditioner to carry out defrosting under the refrigeration mode, or, ending is carried out; according to the defrosting control method, the air conditioner performs defrosting under the heating mode, the good defrosting effect and the good heating effect are ensured, use comfort of a user is improved, when the temperature rise of the heat storage device is high, and the heat storage material is not sufficient, the four-way valve is reversed to enable the air conditioner to carry out defrosting under the refrigeration mode, the good defrosting effect is ensured, and the use satisfaction of the user is improved.

Description

Defrosting control method, defrosting control system and air-conditioner

Technical field

The present invention relates to air-conditioner technical field, in particular to a kind of defrosting control method, defrosting control system and Air-conditioner.

Background technology

Air-conditioner in correlation technique generally carries out hot gas defrosting using the delivery temperature of compressor, when defrosting is started, Four-way valve commutates, and makes outdoor heat exchanger heat release, indoor heat exchanger heat absorption cause indoor environment temperature to reduce, so colder In environment, air-conditioner operation kind of refrigeration cycle can cause room temperature sometimes hot and sometimes cold, influence the comfort level of user；And defrosted Frost in journey due to outdoor heat exchanger bottom is more difficult cleared, when in top half, oneself finishes through defrosting, it is necessary to when outdoor is changed Partly defrosted under hot device and therefore a part can be wasted while complete to defrost and enter normal heating operation state completely Heat, and defrosting process is extended, reduce heating capacity and reduce overall heating effect.

The content of the invention

At least one in order to solve the above-mentioned technical problem, the embodiment of the first aspect of the present invention proposes a kind of defrost control Method processed.

A kind of the second aspect of the present invention embodiment, it is also proposed that defrosting control system.

A kind of another aspect of the invention embodiment, it is also proposed that air-conditioner.

In view of this, embodiment according to the first aspect of the invention, it is proposed that a kind of defrosting control method, for air-conditioning Device, air-conditioner includes compressor, four-way valve, outdoor heat exchanger, accumulation of heat component and stop valve, and accumulation of heat component and stop valve are in parallel Be arranged between four-way valve and outdoor heat exchanger, accumulation of heat component includes storage heater and electric heating part, and accumulation of heat component can make Air-conditioner defrost in a heating mode, defrosting control method includes：Air-conditioner in a heating mode, detects the system ginseng of air-conditioner Number；Judge whether systematic parameter reaches default defrost condition；If so, control stop valve is closed, control electric heating part work is to storing Hot device carries out heating makes air-conditioner defrost in a heating mode；The operating time of electric heating part is recorded, storage heater temperature is detected, It is T0 by detected storage heater thermograph when operating time reaches the first preset duration, and after the second preset duration, It is Ti by detected storage heater thermograph；Judge storage heater temperature difference Ti-T0 whether more than fiducial temperature；If so, control Electric heating part processed is stopped, and control stop valve is opened, and control four-way valve commutation makes air-conditioner defrost in cooling mode, if It is no, terminate.

The defrosting control method that the embodiment of first aspect present invention is provided, by air-conditioner in a heating mode, detection The systematic parameter of air-conditioner, and when systematic parameter reaches default defrost condition, control stop valve is closed, and controls electric heating part work Work carries out heating to storage heater makes air-conditioner defrost in a heating mode so that refrigerant is by being electrically heated the accumulation of heat that part is heated Heat is fully absorbed during device, raising flows to the temperature of indoor heat exchanger refrigerant, and then ensures good heating effect, meanwhile, by Indoor heat exchanger is migrated to the temperature of outdoor heat exchanger refrigerant higher and is conducive to the outdoor heat exchanger to carry out defrost, it is ensured that outdoor is changed Hot device is quick, thorough defrost, it is to avoid four-way valve commutation makes air-conditioner, and defrost makes the larger shadow of fluctuations in indoor temperature in cooling mode The comfort level of user is rung, the comfort level that user uses is effectively improved, the satisfaction that user uses is improved；By recording electrical heating The operating time of part, detects storage heater temperature, when operationally length reaches the first preset duration, the storage heater temperature that will be detected T0 is recorded as, and after the second preset duration, the storage heater thermograph that will be detected is Ti, and when whether Ti-T0 more than pre- If the judged result of the temperature difference by controlling electric heating part when being, to be stopped, control stop valve is opened, and controls four-way reversing valve Commutation makes air-conditioner defrost in cooling mode so that not enough in heat-storing material, and the temperature rise of storage heater is very fast, defrost and heats effect Being commutated by four-way valve in the case of really poor makes air-conditioner carry out defrost in cooling mode, and then ensures air-conditioner defrost Promptness, validity, completeness, it is ensured that good defrost effect, it is to avoid defrost effect it is poor and influence air-conditioner heat effect Really, it is effectively guaranteed good heating effect, it is ensured that air-conditioner also can normally run when heat-storing material is not enough and be removed Frost, lifts the experience of user, improves the satisfaction that user uses；And when whether Ti-T0 is more than the judgement knot of fiducial temperature When fruit is no, terminate so that in the case of heat-storing material abundance, air-conditioner continues not commutated with heating mode four-way valve to carry out Defrost, it is ensured that good defrost effect and heating effect, lifting user, using the comfort level of air-conditioner, lifts user in defrost Experience, improve the satisfaction that uses of user.

In addition, the defrosting control method in above-described embodiment of present invention offer can also have following supplementary technology special Levy：

In the above-mentioned technical solutions, it is preferable that also include：Temperature is preset when judging whether storage heater temperature difference Ti-T0 is more than Poor judged result is when being, to push and show heat-storing material fault message.

In the technical scheme, whether the judged result for being more than fiducial temperature by the temperature difference Ti-T0 in storage heater is When being, heat-storing material fault message is pushed and shows, the storage heater for facilitating user to understand air-conditioner accurately and in time lacks accumulation of heat Material, and then be conducive to user to supplement heat-storing material in time according to the fault message of heat-storing material, simultaneously effective point out to use The current defrost pattern of family air-conditioner, is conducive to user that the work shape of air-conditioner is controlled according to the current defrost pattern of air-conditioner State, to ensure good heating effect, and then improves the satisfaction that user uses.Further, the fault message of storage heater can Think and lack heat-storing material information, or remaining heat-storing material and storage heater volume accounting information, and then be conducive to user Accounting information according to remaining heat-storing material and storage heater volume accurately adds suitable heat-storing material, simple, convenient, carries Rise the experience of user.

In any of the above-described technical scheme, it is preferable that control stop valve is closed, control electric heating part work is entered to storage heater Row heating includes the specific steps of air-conditioner defrost in a heating mode：Control stop valve is closed；After the 3rd preset duration, Control electric heating part work carries out heating to storage heater makes air-conditioner defrost in a heating mode.

In the technical scheme, closed by controlling stop valve, after the 3rd preset duration, control electric heating part work is right Storage heater carries out heating makes air-conditioner defrost in a heating mode so that air-conditioner is meeting the defrost condition starting stage, first leads to Crossing the heat that storage heater stores under air conditioner heat-production pattern carries out defrost so that the heat of storage heater storage obtains effective profit With, and controlling electric heating part work to heat storage heater after the 3rd preset duration, it is to avoid electric heating part works wave always Take the energy, effectively saved the energy, it is to avoid waste, reduce use cost, improve the satisfaction that user uses.

In any of the above-described technical scheme, it is preferable that the first preset duration, the second preset duration, the 3rd preset duration are At least one of：The relational expression of storage heater volume, the relational expression of heat-storing material, fixed value.

In the technical scheme, the first preset duration, the second preset duration, the 3rd preset duration be at least one of but Not limited to this：The relational expression of storage heater volume, the relational expression of heat-storing material, fixed value, the first preset duration, the second preset duration With the demand that various expression ways of the 3rd preset duration disclosure satisfy that different air-conditioners, different accumulation of heat component and different user, It is applied widely.On the one hand, the first preset duration, the second preset duration and the 3rd preset duration are storage heater volume and accumulation of heat The relational expression of material, heat-storing material in ensure that air-conditioner in the first preset duration by being contained in storage heater and its Capacity absorbs enough heats and is defrosted, and situation about being risen according to the storage heater temperature in the second preset duration, timely, accurate The defrost pattern of air-conditioner and the working condition of electric heating part really are controlled, and then is ensured good defrost effect and is saved energy Source, improves the satisfaction that user uses, and is worked in control electric heating part by after the 3rd preset duration after stop valve is opened, The energy is effectively saved, it is to avoid waste；On the one hand, the first preset duration and the second preset duration are fixed value, convenient to use Family is set, and is conducive to operation.

In any of the above-described technical scheme, it is preferable that fiducial temperature is at least one of：The relation of storage heater volume Formula, the relational expression of heat-storing material, the relational expression of the first preset duration, the relational expression of the second preset duration, the 3rd preset duration Relational expression, fixed value.

In the technical scheme, fiducial temperature is at least one of but not limited to this：The relational expression of storage heater volume, storage The relational expression of hot material, the relational expression of the first preset duration, the relational expression of the second preset duration, fixed value, fiducial temperature it is many The demand that expression way disclosure satisfy that different air-conditioners, different accumulation of heat components and different user is planted, it is applied widely.

In any of the above-described technical scheme, it is preferable that systematic parameter is at least one of or its combination：The temperature of storage heater Degree, the temperature of condenser, the run time of compressor, the running frequency of compressor.

In the technical scheme, systematic parameter is at least one of or its combination but not limited to this：The temperature of storage heater, The temperature of condenser, the run time of compressor, the running frequency of compressor, various expression-forms of systematic parameter disclosure satisfy that The demand of different air-conditioners and different user, it is applied widely.

In any of the above-described technical scheme, it is preferable that the first preset duration is 4 minutes, and fiducial temperature is 50 DEG C, and second is pre- If when a length of 0.5 minute, the 3rd preset duration be 2 minutes.

In the technical scheme, air-conditioner is when systematic parameter reaches default defrost condition in a heating mode, control cut-off Valve is closed, and control electric heating part work after the 2 minutes so that air-conditioner is meeting the defrost condition starting stage, first passes through storage The heat that hot device is stored under air conditioner heat-production pattern carries out defrost so that the heat of storage heater storage is utilized effectively, and keeps away Exempt from electric heating part to work always the waste energy, effectively saved the energy, it is to avoid waste, use cost is reduced, while so that cold Matchmaker fully absorbs heat when by the storage heater for being electrically heated part heating, and raising flows to the temperature of indoor heat exchanger refrigerant, enters And ensure good heating effect, simultaneously as migrating higher to the temperature of outdoor heat exchanger refrigerant by indoor heat exchanger so that Air-conditioner can carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to the outdoor heat exchanger to carry out defrost, it is ensured that Outdoor heat exchanger is quick, thorough defrost, it is to avoid four-way valve commutation makes air-conditioner, and defrost makes fluctuations in indoor temperature in cooling mode It is larger, and then improve comfort level and satisfaction that user uses；By recording the operating time of electric heating part, and in electric heating part Work 4 minutes by storage heater thermograph be T0, after 0.5 minute by storage heater thermograph be Ti, judge whether Ti-T0 big In 50 DEG C of fiducial temperature, if so, control electric heating part is stopped, control stop valve is opened, and control four-way reversing valve commutation makes Air-conditioner defrost in cooling mode so that being commutated by four-way valve in the case where heat-storing material deficiency defrost effect is poor is made Air-conditioner carries out defrost in cooling mode, and then ensures promptness, validity, the completeness of air-conditioner defrost, it is ensured that good Defrost effect, it is to avoid defrost effect is poor and influences the heating effect of air-conditioner, is effectively guaranteed good heating effect, Ensure that air-conditioner also can normally run when heat-storing material is not enough to be defrosted, lift the experience of user, improve user The satisfaction for using, meanwhile, heat-storing material fault message is pushed and shows, facilitate user to understand air-conditioner accurately and in time Storage heater lacks heat-storing material, is conducive to user to supplement heat-storing material in time according to the fault message of heat-storing material；When Ti-T0 is When the no judged result more than fiducial temperature is no, terminate so that in the case of heat-storing material abundance, air-conditioner continues to make Heat pattern four-way valve does not commutate carries out defrost, it is ensured that good defrost effect and heating effect, and lifting user uses in defrost The comfort level of air-conditioner, lifts the experience of user, improves the satisfaction that user uses.

Embodiment according to the second aspect of the invention, it is also proposed that a kind of defrosting control system, for air-conditioner, defrost control System processed includes：First detection unit, detects the systematic parameter of air-conditioner for air-conditioner in a heating mode；First judges Unit, for judging whether systematic parameter reaches default defrost condition；First execution unit, for sentencing when the first judging unit For when being, control stop valve is closed, control electric heating part work carries out heating to storage heater makes air-conditioner heat mould to disconnected result Defrost under formula, starts the second detection unit and recording unit；Second detection unit, for detecting storage heater temperature；Recording unit, Operating time for recording electric heating part, when operationally length reaches the first preset duration, the second detection unit is detected Storage heater thermograph is T0, and after the second preset duration, the storage heater thermograph that the second detection unit is detected is Ti； Second judging unit, for judging storage heater temperature difference Ti-T0 whether more than fiducial temperature；Second execution unit, for The judged result of two judging units for when being, control electric heating part is stopped, open by control stop valve, control four-way valve commutation Make air-conditioner defrost in cooling mode, when the judged result of the second judging unit is no, terminate.

The defrosting control system that the embodiment of second aspect present invention is provided, by the first detection unit in air conditioner heat-production Under pattern, the systematic parameter of air-conditioner is detected, the first judging unit judges whether systematic parameter reaches default defrost, first performs Unit when the judged result of the first judging unit is to be, closed by control stop valve, and control electric heating part work is entered to storage heater Row heating makes air-conditioner defrost in a heating mode so that refrigerant is fully absorbed when by the storage heater for being electrically heated part heating Heat, raising flows to the temperature of indoor heat exchanger refrigerant, and then ensures good heating effect, meanwhile, moved by indoor heat exchanger The temperature refrigerant higher for moving to outdoor heat exchanger is conducive to the outdoor heat exchanger to carry out defrost, it is ensured that outdoor heat exchanger is quick, thorough Bottom defrost, it is to avoid four-way valve commutation makes air-conditioner, and defrost makes that fluctuations in indoor temperature considerable influence user's is comfortable in cooling mode Degree, effectively improves the comfort level that user uses, and improves the satisfaction that user uses；Storage heater is detected by the second detection unit Temperature, by the operating time of recording unit records electric heating part, and when operationally length reaches the first preset duration, will detect The storage heater thermograph for arriving is T0, and after the second preset duration, the storage heater thermograph that will be detected is Ti, by the Whether two judging units judge Ti-T0 more than fiducial temperature, and the second execution unit is yes in the judged result of the second judging unit When, control electric heating part is stopped, and control stop valve is opened, and control four-way reversing valve commutation makes air-conditioner in cooling mode Defrost so that not enough in heat-storing material, the temperature rise of storage heater is very fast, defrost and heating effect it is poor in the case of pass through four-way valve Commutation makes air-conditioner carry out defrost in cooling mode, and then ensures promptness, validity, the completeness of air-conditioner defrost, protects The good defrost effect of card, it is to avoid defrost effect is poor and influence the heating effect of air-conditioner, be effectively guaranteed good system Thermal effect, it is ensured that air-conditioner also can normally run when heat-storing material is not enough and be defrosted, lifts the experience of user, carries The satisfaction that user high uses, is terminated by the second execution unit when the judged result of the second judging unit is no so that In the case of heat-storing material abundance, air-conditioner continues not commutated with heating mode four-way valve to carry out defrost, it is ensured that good defrost Effect and heating effect, lifting user, using the comfort level of air-conditioner, lift the experience of user in defrost, improve user The satisfaction for using.

In any of the above-described technical scheme, it is preferable that also include：Display unit, for when the judgement of the second judging unit Result is when being, to push and show heat-storing material fault message.

In the technical scheme, by display unit when the judged result of the second judging unit is to be, push and show Heat-storing material fault message, the storage heater for facilitating user to understand air-conditioner accurately and in time lacks heat-storing material, and then is conducive to User supplements heat-storing material in time according to the fault message of heat-storing material, the change for simultaneously effective having pointed out user's air-conditioner current White pattern, is conducive to user that the working condition of air-conditioner is controlled according to the current defrost pattern of air-conditioner, to ensure good system Thermal effect, and then improve the satisfaction that user uses.Further, the fault message of storage heater can be to lack heat-storing material letter Breath, or remaining heat-storing material and storage heater volume accounting information, so be conducive to user according to remaining heat-storing material with The accounting information of storage heater volume accurately adds suitable heat-storing material, simple, convenient, lifts the experience of user.

In any of the above-described technical scheme, it is preferable that the first execution unit also includes：Cut-off valve control unit, VCU, for working as The judged result of the first judging unit is for when being, control stop valve is closed；Timing unit, the duration that record stop valve is closed, and When duration reaches three preset durations, enabling signal is sent to electric heating part control unit；Electric heating part control unit, is used for According to enabling signal, control electric heating part work, heating is carried out to storage heater makes air-conditioner defrost in a heating mode.

In the technical scheme, by ending valve control unit, VCU when the judged result of the first judging unit is to be, control Stop valve is closed, the duration that timing unit record stop valve is closed, and when duration reaches three preset durations, to electric heating part Control unit sends enabling signal, and electric heating part control unit is entered according to enabling signal, control electric heating part work to storage heater Row heating makes air-conditioner defrost in a heating mode so that air-conditioner is meeting the defrost condition starting stage, first passes through storage heater The heat stored under air conditioner heat-production pattern carries out defrost so that the heat of storage heater storage is utilized effectively, and the Electric heating part work is controlled to heat storage heater after three preset durations, it is to avoid electric heating part works the waste energy always, has Save the energy to effect, it is to avoid waste, reduced use cost, improve the satisfaction that user uses.

In any of the above-described technical scheme, it is preferable that the first preset duration, the second preset duration, the 3rd preset duration are At least one of：The relational expression of storage heater volume, the relational expression of heat-storing material, fixed value.

In the technical scheme, the first preset duration, the second preset duration, the 3rd preset duration be at least one of but Not limited to this：The relational expression of storage heater volume, the relational expression of heat-storing material, fixed value, the first preset duration, the second preset duration With the demand that various expression ways of the 3rd preset duration disclosure satisfy that different air-conditioners, different accumulation of heat component and different user, It is applied widely.On the one hand, the first preset duration, the second preset duration and the 3rd preset duration are storage heater volume and accumulation of heat The relational expression of material, heat-storing material in ensure that air-conditioner in the first preset duration by being contained in storage heater and its Capacity absorbs enough heats and is defrosted, and situation about being risen according to the storage heater temperature in the second preset duration, timely, accurate The defrost pattern of air-conditioner and the working condition of electric heating part really are controlled, and then is ensured good defrost effect and is saved energy Source, improves the satisfaction that user uses, and is worked in control electric heating part by after the 3rd preset duration after stop valve is opened, The energy is effectively saved, it is to avoid waste；On the one hand, the first preset duration and the second preset duration are fixed value, convenient to use Family is set, and is conducive to operation.

In any of the above-described technical scheme, it is preferable that fiducial temperature is at least one of：The relation of storage heater volume Formula, the relational expression of heat-storing material, the relational expression of the first preset duration, the relational expression of the second preset duration, the 3rd preset duration Relational expression, fixed value.

In the technical scheme, fiducial temperature is at least one of but not limited to this：The relational expression of storage heater volume, storage The relational expression of hot material, the relational expression of the first preset duration, the relational expression of the second preset duration, fixed value, fiducial temperature it is many The demand that expression way disclosure satisfy that different air-conditioners, different accumulation of heat components and different user is planted, it is applied widely.

In any of the above-described technical scheme, it is preferable that systematic parameter is at least one of or its combination：The temperature of storage heater Degree, the temperature of condenser, the run time of compressor, the running frequency of compressor.

In the technical scheme, systematic parameter is at least one of or its combination but not limited to this：The temperature of storage heater, The temperature of condenser, the run time of compressor, the running frequency of compressor, various expression-forms of systematic parameter disclosure satisfy that The demand of different air-conditioners and different user, it is applied widely.

In any of the above-described technical scheme, it is preferable that the first preset duration is 4 minutes, and fiducial temperature is 50 DEG C, and first is pre- If temperature is 80 DEG C, the second preset temperature is 20 DEG C, and the second preset duration is 0.5 minute, and the 3rd preset duration is 2 minutes.

In the technical scheme, air-conditioner is when systematic parameter reaches default defrost condition in a heating mode, control cut-off Valve is closed, and control electric heating part work after the 2 minutes so that air-conditioner is meeting the defrost condition starting stage, first passes through storage The heat that hot device is stored under air conditioner heat-production pattern carries out defrost so that the heat of storage heater storage is utilized effectively, and keeps away Exempt from electric heating part to work always the waste energy, effectively saved the energy, it is to avoid waste, use cost is reduced, while so that cold Matchmaker fully absorbs heat when by the storage heater for being electrically heated part heating, and raising flows to the temperature of indoor heat exchanger refrigerant, enters And ensure good heating effect, simultaneously as migrating higher to the temperature of outdoor heat exchanger refrigerant by indoor heat exchanger so that Air-conditioner can carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to the outdoor heat exchanger to carry out defrost, it is ensured that Outdoor heat exchanger is quick, thorough defrost, it is to avoid four-way valve commutation makes air-conditioner, and defrost makes fluctuations in indoor temperature in cooling mode It is larger, and then improve comfort level and satisfaction that user uses；By recording the operating time of electric heating part, and in electric heating part Storage heater thermograph is T0 in 4 minutes by work, and it is Ti to be recorded storage heater thermograph after 0.5 minute, judges that Ti-T0 is It is no more than 50 DEG C of fiducial temperature, if so, control electric heating part is stopped, control stop valve is opened, and control four-way reversing valve is changed To making air-conditioner defrost in cooling mode so that changed by four-way valve in the case where heat-storing material deficiency defrost effect is poor To making air-conditioner carry out defrost in cooling mode, and then ensure promptness, validity, the completeness of air-conditioner defrost, it is ensured that Good defrost effect, it is to avoid defrost effect is poor and influences the heating effect of air-conditioner, is effectively guaranteed good heating Effect, it is ensured that air-conditioner also can normally run when heat-storing material is not enough and be defrosted, lifts the experience of user, improves The satisfaction that user uses, meanwhile, heat-storing material fault message is pushed and shows, facilitate user to understand air-conditioning accurately and in time The storage heater of device lacks heat-storing material, is conducive to user to supplement heat-storing material in time according to the fault message of heat-storing material；If it is not, That is when the judged result whether Ti-T0 is more than fiducial temperature is no, terminate so that in the case of heat-storing material abundance, air-conditioning Device continues not commutated with heating mode four-way valve to carry out defrost, it is ensured that good defrost effect and heating effect, lifting user exist Using the comfort level of air-conditioner during defrost, the experience of user is lifted, improve the satisfaction that user uses.

Embodiment in accordance with a further aspect of the present invention, the present invention proposes a kind of air-conditioner, including：Any of the above-described technology Defrosting control system described in scheme.

The air-conditioner that further aspect of the present invention is provided, including the defrosting control system described in any of the above-described technical scheme.Cause Air-conditioner of the invention is provided with the defrosting control system of second aspect embodiment, thus possesses second aspect embodiment defrost control Whole beneficial effects of system processed, will not be repeated here.

In the above-mentioned technical solutions, air-conditioner also includes：Compressor；Indoor heat exchanger；Outdoor heat exchanger；Four-way valve, if Put indoors between heat exchanger and outdoor heat exchanger, the air inlet of two orifice compressors of four-way valve and gas outlet, four One end and one end of outdoor heat exchanger of the another two orifice indoor heat exchanger of port valve；Throttling arrangement, is disposed in the interior and changes Between the other end of hot device and the other end of outdoor heat exchanger；Accumulation of heat component, is arranged between four-way valve and outdoor heat exchanger, stores Hot component includes storage heater, electric heating part and temperature-detecting device, and storage heater is used to accommodate heat-storing material, and electric heating part is arranged on On storage heater, for being heated to storage heater, temperature-detecting device is arranged on storage heater, for detecting storage heater temperature； Stop valve, is arranged between four-way valve and outdoor heat exchanger, is connected with accumulation of heat modules in parallel.

The air-conditioner that the present invention is provided, by setting accumulation of heat component between four-way valve and outdoor heat exchanger, air-conditioner exists When heating mode is issued to defrost condition, control stop valve is closed, and electric heating part work is heated to storage heater so that accumulation of heat Device stores heat by the heat-storing material for accommodating, and electric heating part heat storage device makes heat-storing material store sufficient heat, refrigerant Heat is fully absorbed when by the storage heater for being electrically heated part heating, raising flows to the temperature of indoor heat exchanger refrigerant, and then Ensure good heating effect, simultaneously as migrating higher to the temperature of the refrigerant of outdoor heat exchanger by indoor heat exchanger so that Air-conditioner can also carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to the outdoor heat exchanger to carry out defrost, it is ensured that Outdoor heat exchanger is quick, thorough defrost, it is to avoid four-way valve commutation make air-conditioner in cooling mode defrost fluctuations in indoor temperature compared with The comfort level of big influence user, effectively improves the comfort level that user uses, and improves the satisfaction that user uses；By being arranged on Temperature-detecting device detection storage heater temperature on storage heater, and when storage heater temperature difference is more than fiducial temperature in Preset Time Control electric heating part is stopped, and control stop valve is opened, and four-way valve commutation makes air-conditioner defrost in cooling mode so that Being commutated by four-way valve in the case that heat-storing material deficiency defrost effect is poor makes air-conditioner carry out defrost in cooling mode, enters And ensure promptness, validity, the completeness of air-conditioner defrost, it is ensured that good defrost effect, it is to avoid defrost effect it is poor and The heating effect of air-conditioner is influenceed, good heating effect is effectively guaranteed, it is ensured that air-conditioner can normally run and be removed Frost, lifts the experience of user, improves the satisfaction that user uses；And tied when the storage heater temperature difference is not more than fiducial temperature Beam so that in the case of heat-storing material abundance, air-conditioner continues not commutated with heating mode four-way valve to carry out defrost, it is ensured that good Good defrost effect and heating effect, lifting user, using the comfort level of air-conditioner, lift the experience of user in defrost, Improve the satisfaction that user uses.Further, by the stop valve being arranged between four-way valve and outdoor heat exchanger and accumulation of heat Modules in parallel is connected, and is conducive to controlling the working condition of accumulation of heat component or stop valve to be transported with different patterns to meet air-conditioner OK, it is to avoid need to shut down to meet the comfortableness that air-conditioner influences user to use with different mode operations, and then ensure that Air-conditioner can switch different patterns in the process of running, lift the experience of user, improve the satisfaction that user uses.

In any of the above-described technical scheme, it is preferable that temperature-detecting device is temperature sensor.

In the technical scheme, temperature-detecting device is temperature sensor, temperature sensor cost is relatively low, compact conformation, Sensitivity is higher, easily can be arranged on storage heater, and meets the structure of storage heater, further, temperature-detecting device Can also be to meet other desired temperature-detecting devices.Further, temperature-detecting device can be arranged on inside storage heater Storage heater outer surface can also be arranged on, the demand of different temperatures detection means and different storage heater structures is disclosure satisfy that, is applicable It is in extensive range.

In any of the above-described technical scheme, it is preferable that heat-storing material is covert heat-storing material.

In the technical scheme, heat-storing material be covert heat-storing material, can stablize, prolonged storing heat, it is to avoid Storage heater temperature rises rapid and causes refrigerator oil to be carbonized, while avoiding storage heater temperature change, comparatively fast needs frequently open electricity Heating member and produce rush of current, covert heat-storing material ensure that good heating effect and defrost effect, and improving user makes Satisfaction.Further, covert heat-storing material is at least one of or its combination but not limited to this：Water, paraffin.

In any of the above-described technical scheme, it is preferable that throttling arrangement is electric expansion valve.

In the technical scheme, throttling arrangement is electric expansion valve so that the different operational modes control according to air-conditioner Electric expansion valve is opened with different aperture threshold values, and then meets the different demands to coolant quantity of air-conditioner system, is applicable model Enclose extensively, and ensure that good heating effect and defrost effect, and then improve the satisfaction that user uses.Further, Air-conditioner in a heating mode defrost when, electric expansion valve with maximum opening threshold value open, with ensure abundance coolant quantity carry out Energy exchange, it is ensured that good defrost effect and heating effect, improves the satisfaction that user uses.

Additional aspect of the invention and advantage will become obvious in following description section, or by practice of the invention Recognize.

Brief description of the drawings

Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined Substantially and be readily appreciated that, wherein：

Fig. 1 a are the schematic flow sheets of defrosting control method in one embodiment of the present of invention；

Fig. 1 b are the schematic flow sheets of defrosting control method in an alternative embodiment of the invention；

Fig. 2 a are the schematic block diagrams of defrosting control system in one embodiment of the present of invention；

Fig. 2 b are the schematic block diagrams of defrosting control system in an alternative embodiment of the invention；

Fig. 3 a are the schematic block diagrams of the air-conditioner of one embodiment of the present of invention；

Fig. 3 b are the system schematics of air-conditioner in one embodiment of the present of invention.

Wherein, the corresponding relation in Fig. 3 b between reference and component names is：

300 air-conditioners, 102 compressors, 104 indoor heat exchangers, 106 outdoor heat exchangers, 108 four-way valves, 110 throttling dresses Put, 112 accumulation of heat components, 1122 storage heaters, 1124 electric heating parts, 114 choke valves.

Specific embodiment

It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention Mode is applied to be further described in detail the present invention.It should be noted that in the case where not conflicting, the implementation of the application Feature in example and embodiment can be mutually combined.

Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

Referring to Fig. 1 a to Fig. 3 b description according to some embodiments of the invention defrosting control method, defrosting control system and Air-conditioner.

As shown in Figure 1a, embodiment according to the first aspect of the invention, it is proposed that a kind of defrosting control method, such as Fig. 1 a institutes The defrosting control method schematic flow sheet of the one embodiment of the present of invention shown includes：

Step S102, air-conditioner in a heating mode, detects the systematic parameter of air-conditioner；

Step S104, judges whether systematic parameter reaches default defrost condition；

Step S106, if the judged result of step S104 is yes, control stop valve is closed, and control electric heating part work is to storing Hot device carries out heating makes air-conditioner defrost in a heating mode；

Step S108, records the operating time of electric heating part, detects storage heater temperature, and operationally length reaches first and presets It is T0 by detected storage heater thermograph during duration；

Step S110, and be Ti by detected storage heater thermograph after the second preset duration；

Whether step S112, judge storage heater temperature difference Ti-T0 more than fiducial temperature；

Step S114, if the judged result of step S112 is yes, control electric heating part is stopped, and control stop valve is opened Open, control four-way valve commutation makes air-conditioner defrost in cooling mode, if the judged result of step S112 is no, terminates.

The defrosting control method that the embodiment of first aspect present invention is provided, by air-conditioner in a heating mode, detection The systematic parameter of air-conditioner, and when systematic parameter reaches default defrost condition, control stop valve is closed, and controls electric heating part work Work carries out heating to storage heater makes air-conditioner defrost in a heating mode so that refrigerant is by being electrically heated the accumulation of heat that part is heated Heat is fully absorbed during device, raising flows to the temperature of indoor heat exchanger refrigerant, and then ensures good heating effect, meanwhile, by Indoor heat exchanger is migrated to the temperature of outdoor heat exchanger refrigerant higher and is conducive to the outdoor heat exchanger to carry out defrost, it is ensured that outdoor is changed Hot device is quick, thorough defrost, it is to avoid four-way valve commutation makes air-conditioner, and defrost makes the larger shadow of fluctuations in indoor temperature in cooling mode The comfort level of user is rung, the comfort level that user uses is effectively improved, the satisfaction that user uses is improved；By recording electrical heating The operating time of part, detects the temperature of storage heater, when operationally length reaches the first preset duration, the storage heater temperature that will be detected Degree is recorded as T0, and after the second preset duration, the storage heater thermograph that will be detected is Ti, and when whether Ti-T0 is more than The judged result of fiducial temperature when being, to be stopped by controlling electric heating part, open by control stop valve, control four-way commutation Valve commutation makes air-conditioner defrost in cooling mode so that not enough in heat-storing material, and the temperature rise of storage heater is very fast, defrost and heats Being commutated by four-way valve in the case that effect is poor makes air-conditioner carry out defrost in cooling mode, and then ensures air-conditioner defrost Promptness, validity, completeness, it is ensured that good defrost effect, it is to avoid defrost effect is poor and influences heating for air-conditioner Effect, is effectively guaranteed good heating effect, it is ensured that air-conditioner also can normally run when heat-storing material is not enough and carry out Defrosting, lifts the experience of user, and the satisfaction that raising user uses simultaneously works as the judgement knot whether Ti-T0 is more than fiducial temperature When fruit is no, terminate so that in the case of heat-storing material abundance, air-conditioner continues not commutated with heating mode four-way valve to carry out Defrost, it is ensured that good defrost effect and heating effect, lifting user, using the comfort level of air-conditioner, lifts user in defrost Experience, improve the satisfaction that uses of user.

The defrosting control method schematic flow sheet of one embodiment of the present of invention as shown in Figure 1a, also includes：

Step S116, if the judged result of step S112 is yes, pushes and shows heat-storing material fault message.

The defrosting control method that the present invention is provided, by the temperature difference Ti-T0 in storage heater whether more than fiducial temperature Judged result facilitates user to understand the accumulation of heat of air-conditioner accurately and in time when being, to push and showing heat-storing material fault message Device lacks heat-storing material, and then is conducive to user to supplement heat-storing material in time according to the fault message of heat-storing material, while effectively Pointed out user's air-conditioner current defrost pattern, be conducive to user according to the current defrost pattern of air-conditioner control air-conditioner Working condition, to ensure good heating effect, and then improve the satisfaction that user uses.Further, the event of storage heater Barrier information can be to lack heat-storing material information, or remaining heat-storing material and storage heater volume accounting information, Jin Eryou Suitable heat-storing material, operation letter are accurately added according to the accounting information of remaining heat-storing material and storage heater volume beneficial to user Single, convenience, lifts the experience of user.

The defrosting control method schematic flow sheet of another embodiment of the present invention as shown in Figure 1 b, also includes：

Step S1062, control stop valve is closed, after the 3rd preset duration；

Step S1064, control electric heating part work carries out heating to storage heater makes air-conditioner defrost in a heating mode.

The defrosting control method that the present invention is provided, is closed by controlling stop valve, and after the 3rd preset duration, control electricity adds Warmware work carries out heating to storage heater and makes air-conditioner defrost in a heating mode so that air-conditioner is to meet defrost condition initial In the stage, first passing through the heat that storage heater stores under air conditioner heat-production pattern carries out defrost so that the heat of storage heater storage is obtained To effectively utilization, and electric heating part work is controlled to heat storage heater after the 3rd preset duration, it is to avoid electric heating part one Straight work wastes the energy, has effectively saved the energy, it is to avoid waste, and reduces use cost, improves the satisfaction that user uses.

In one embodiment of the invention, it is preferable that the first preset duration, the second preset duration, the 3rd preset duration It is at least one of：The relational expression of storage heater volume, the relational expression of heat-storing material, fixed value.

In this embodiment, the first preset duration, the second preset duration, the 3rd preset duration are at least one of but not It is limited to this：The relational expression of storage heater volume, the relational expression of heat-storing material, fixed value, the first preset duration, the second preset duration and Various expression ways of the 3rd preset duration disclosure satisfy that the demand of different air-conditioners, different accumulation of heat components and different user, fit With in extensive range.On the one hand, the first preset duration, the second preset duration and the 3rd preset duration are storage heater volume and accumulation of heat material The relational expression of material, heat-storing material and its appearance in ensure that air-conditioner in the first preset duration by being contained in storage heater Amount absorbs enough heats and is defrosted, and situation about being risen according to the storage heater temperature in the second preset duration, in time, accurately The defrost pattern of ground control air-conditioner and the working condition of electric heating part, and then ensure good defrost effect and energy saving, The satisfaction that user uses is improved, is worked in control electric heating part by after the 3rd preset duration after stop valve is opened, had The energy is saved in effect ground, it is to avoid waste；On the one hand, the first preset duration and the second preset duration are fixed value, facilitate user Set, be conducive to operation.

In one embodiment of the invention, it is preferable that fiducial temperature is at least one of：The relation of storage heater volume Formula, the relational expression of heat-storing material, the relational expression of the first preset duration, the relational expression of the second preset duration, the 3rd preset duration Relational expression, fixed value.

In this embodiment, fiducial temperature is at least one of but not limited to this：The relational expression of storage heater volume, accumulation of heat The relational expression of material, the relational expression of the first preset duration, the relational expression of the second preset duration, fixed value, fiducial temperature it is various Expression way disclosure satisfy that the demand of different air-conditioners, different accumulation of heat components and different user, applied widely.

In one embodiment of the invention, it is preferable that systematic parameter is at least one of or its combination：Storage heater Temperature, the temperature of condenser, the run time of compressor, the running frequency of compressor.

In this embodiment, systematic parameter is at least one of or its combination but not limited to this：It is the temperature of storage heater, cold The temperature of condenser, the run time of compressor, the running frequency of compressor, various expression-forms of systematic parameter disclosure satisfy that not It is applied widely with air-conditioner and the demand of different user.

In one embodiment of the invention, it is preferable that the first preset duration is 4 minutes, fiducial temperature is 50 DEG C, second Preset duration is 0.5 minute, and the 3rd preset duration is 2 minutes.

In this embodiment, air-conditioner controls stop valve when systematic parameter reaches default defrost condition in a heating mode Close, and control electric heating part work after the 2 minutes so that air-conditioner is meeting the defrost condition starting stage, first passes through accumulation of heat The heat that device is stored under air conditioner heat-production pattern carries out defrost so that the heat of storage heater storage is utilized effectively, it is to avoid Electric heating part works the waste energy always, has effectively saved the energy, it is to avoid waste, and use cost is reduced, while so that refrigerant Heat is fully absorbed when by the storage heater for being electrically heated part heating, raising flows to the temperature of indoor heat exchanger refrigerant, and then Ensure good heating effect, simultaneously as migrating higher to the temperature of outdoor heat exchanger refrigerant by indoor heat exchanger so that empty Adjusting device can carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to the outdoor heat exchanger to carry out defrost, it is ensured that room External heat exchanger is quick, thorough defrost, it is to avoid four-way valve commutation make air-conditioner in cooling mode defrost make fluctuations in indoor temperature compared with Greatly, and then the user comfort level and satisfaction that use are improved；By recording the operating time of electric heating part, and in electric heating part work Storage heater thermograph is T0 in 4 minutes by work, and whether it is Ti to be recorded storage heater thermograph after 0.5 minute, judges Ti-T0 More than 50 DEG C of fiducial temperature, if so, control electric heating part is stopped, control stop valve is opened, control four-way reversing valve commutation Make air-conditioner defrost in cooling mode so that commutated by four-way valve in the case where heat-storing material deficiency defrost effect is poor Air-conditioner is carried out defrost in cooling mode, and then ensure promptness, validity, the completeness of air-conditioner defrost, it is ensured that be good Good defrost effect, it is to avoid defrost effect is poor and influence the heating effect of air-conditioner, be effectively guaranteed and good heat effect Really, it is ensured that air-conditioner also can normally run when heat-storing material is not enough and be defrosted, the experience of user is lifted, improves and use The satisfaction that family uses, meanwhile, heat-storing material fault message is pushed and shows, facilitate user to understand air-conditioner accurately and in time Storage heater lack heat-storing material, be conducive to user to supplement heat-storing material in time according to the fault message of heat-storing material；Work as Ti-T0 Whether more than fiducial temperature judged result for it is no when, terminate so that heat-storing material abundance in the case of, air-conditioner continue with Heating mode four-way valve does not commutate carries out defrost, it is ensured that good defrost effect and heating effect, and lifting user makes in defrost With the comfort level of air-conditioner, the experience of user is lifted, improve the satisfaction that user uses.

As shown in Figure 2 a, a kind of embodiment according to the second aspect of the invention, it is also proposed that defrosting control system 200, uses In air-conditioner, defrosting control system includes：First detection unit 202, for air-conditioner in a heating mode, detection air-conditioner Systematic parameter；First judging unit 204, for judging whether systematic parameter reaches default defrost condition；First execution unit 206206, for when the judged result of the first judging unit 204 is to be, control stop valve to be closed, control electric heating part work Heating is carried out to storage heater makes air-conditioner defrost in a heating mode, starts the second detection unit 210 and recording unit 208；The Two detection units 210, for detecting storage heater temperature；Recording unit 208, the operating time for recording electric heating part, in work When reaching the first preset duration as duration, the storage heater thermograph that the second detection unit 210 is detected is T0, and pre- second If after duration, the storage heater thermograph that the second detection unit 210 is detected is Ti；Second judging unit 212, for judging to store Whether hot device temperature difference Ti-T0 is more than fiducial temperature；Second execution unit 214, for the judgement knot in the second judging unit 212 Fruit for when being, control electric heating part is stopped, open by control stop valve, and control four-way valve commutation makes air-conditioner in refrigeration mode Lower defrost, when the judged result of the second judging unit 212 is no, terminates.

The defrosting control system 200 that the embodiment of second aspect present invention is provided, by the first detection unit 202 in air-conditioning Under device heating mode, the systematic parameter of air-conditioner is detected, the first judging unit 204 judges whether systematic parameter reaches defaultization Frost, the first execution unit 206206 when the judged result of the first judging unit 204 is to be, close by control stop valve, control electricity Heating member work carries out heating to storage heater makes air-conditioner defrost in a heating mode so that refrigerant adds by being electrically heated part Heat is fully absorbed during the storage heater of heat, raising flows to the temperature of indoor heat exchanger refrigerant, and then ensures good heating effect, Meanwhile, migrated to the temperature of outdoor heat exchanger refrigerant higher by indoor heat exchanger and be conducive to the outdoor heat exchanger to carry out defrost, protect Card outdoor heat exchanger is quick, thorough defrost, it is to avoid four-way valve commutation makes air-conditioner, and defrost makes indoor temperature ripple in cooling mode The comfort level of dynamic considerable influence user, effectively improves the comfort level that user uses, and improves the satisfaction that user uses；By Two detection unit 210 detects storage heater temperature, and the operating time of electric heating part is recorded by recording unit 208, and operationally When length reaches the first preset duration, the storage heater thermograph that will be detected is T0, and after the second preset duration, will be detected Storage heater thermograph be Ti, by the second judging unit 212 judge Ti-T0 whether be more than fiducial temperature, second performs list When the judged result of the second judging unit 212 is to be, control electric heating part is stopped for unit 214, and control stop valve is opened, control Four-way reversing valve commutation processed makes air-conditioner defrost in cooling mode so that not enough in heat-storing material, and the temperature rise of storage heater is very fast, Being commutated by four-way valve in the case that defrost and heating effect are poor makes air-conditioner carry out defrost in cooling mode, and then ensures The promptness of air-conditioner defrost, validity, completeness, it is ensured that good defrost effect, it is to avoid defrost effect is poor and influence is empty The heating effect of device is adjusted, good heating effect is effectively guaranteed, it is ensured that air-conditioner also can be just when heat-storing material is not enough Often operation is defrosted, and lifts the experience of user, improves the satisfaction that user uses, and is existed by the second execution unit 214 The judged result of the second judging unit 212 terminates when being no so that in the case of heat-storing material abundance, air-conditioner continues to make Heat pattern four-way valve does not commutate carries out defrost, it is ensured that good defrost effect and heating effect, and lifting user uses in defrost The comfort level of air-conditioner, lifts the experience of user, improves the satisfaction that user uses.

Defrosting control system 200 as shown in Figure 2 a, it is preferable that also include：Display unit 216, for when the second judgement The judged result of unit 212 is when being, to push and show heat-storing material fault message.

In this embodiment, pushed simultaneously when the judged result of the second judging unit 212 is to be by display unit 216 Display heat-storing material fault message, the storage heater for facilitating user to understand air-conditioner accurately and in time lacks heat-storing material, Jin Eryou Heat-storing material is supplemented according to the fault message of heat-storing material in time beneficial to user, has simultaneously effective pointed out user's air-conditioner current Defrost pattern, be conducive to user that the working condition of air-conditioner is controlled according to the current defrost pattern of air-conditioner, it is good to ensure Heating effect, and then improve the satisfaction that uses of user.Further, the fault message of storage heater can be to lack accumulation of heat material Material information, or remaining heat-storing material and storage heater volume accounting information, and then be conducive to user according to remaining accumulation of heat material Material accurately adds suitable heat-storing material with the accounting information of storage heater volume, simple, convenient, lifts the use body of user Test.

Defrosting control system 200 as shown in Figure 2 b, in any of the above-described technical scheme, it is preferable that the first execution unit 206 also include：Cut-off valve control unit, VCU 2062, for when the judged result of the first judging unit 204 is to be, controlling stop valve Close；Timing unit 2064, the duration that record stop valve is closed, and when duration reaches three preset durations, to electric heating part Control unit 2066 sends enabling signal；Electric heating part control unit 2066, for according to enabling signal, controlling electric heating part work Make, heating is carried out to storage heater makes air-conditioner defrost in a heating mode.

In this embodiment, by end valve control unit, VCU 2062 the first judging unit 204 judged result for be when, Control stop valve is closed, the duration that the record stop valve of timing unit 2064 is closed, and when duration reaches three preset durations, to Electric heating part control unit 2066 sends enabling signal, and electric heating part control unit 2066 controls electrical heating according to enabling signal Part work carries out heating to storage heater makes air-conditioner defrost in a heating mode so that air-conditioner is meeting the initial rank of defrost condition Section, first passing through the heat that storage heater store under air conditioner heat-production pattern carries out defrost so that the heat that storage heater is stored is obtained Effectively utilize, and control electric heating part work to heat storage heater after the 3rd preset duration, it is to avoid electric heating part is always Work wastes the energy, has effectively saved the energy, it is to avoid waste, and reduces use cost, improves the satisfaction that user uses.

In one embodiment of the invention, it is preferable that the first preset duration, the second preset duration, the 3rd preset duration It is at least one of：The relational expression of storage heater volume, the relational expression of heat-storing material, fixed value.

In this embodiment, the first preset duration, the second preset duration, the 3rd preset duration are at least one of but not It is limited to this：The relational expression of storage heater volume, the relational expression of heat-storing material, fixed value, the first preset duration, the second preset duration and Various expression ways of the 3rd preset duration disclosure satisfy that the demand of different air-conditioners, different accumulation of heat components and different user, fit With in extensive range.On the one hand, the first preset duration, the second preset duration and the 3rd preset duration are storage heater volume and accumulation of heat material The relational expression of material, heat-storing material and its appearance in ensure that air-conditioner in the first preset duration by being contained in storage heater Amount absorbs enough heats and is defrosted, and situation about being risen according to the storage heater temperature in the second preset duration, in time, accurately The defrost pattern of ground control air-conditioner and the working condition of electric heating part, and then ensure good defrost effect and energy saving, The satisfaction that user uses is improved, is worked in control electric heating part by after the 3rd preset duration after stop valve is opened, had The energy is saved in effect ground, it is to avoid waste；On the one hand, the first preset duration and the second preset duration are fixed value, facilitate user Set, be conducive to operation.

In one embodiment of the invention, it is preferable that fiducial temperature is at least one of：The relation of storage heater volume Formula, the relational expression of heat-storing material, the relational expression of the first preset duration, the relational expression of the second preset duration, the 3rd preset duration Relational expression, fixed value.

In this embodiment, fiducial temperature is at least one of but not limited to this：The relational expression of storage heater volume, accumulation of heat The relational expression of material, the relational expression of the first preset duration, the relational expression of the second preset duration, fixed value, fiducial temperature it is various Expression way disclosure satisfy that the demand of different air-conditioners, different accumulation of heat components and different user, applied widely.

In one embodiment of the invention, it is preferable that systematic parameter is at least one of or its combination：Storage heater Temperature, the temperature of condenser, the run time of compressor, the running frequency of compressor.

In this embodiment, systematic parameter is at least one of or its combination but not limited to this：It is the temperature of storage heater, cold The temperature of condenser, the run time of compressor, the running frequency of compressor, various expression-forms of systematic parameter disclosure satisfy that not It is applied widely with air-conditioner and the demand of different user.

In one embodiment of the invention, it is preferable that the first preset duration is 4 minutes, fiducial temperature is 50 DEG C, first Preset temperature is 80 DEG C, and the second preset temperature is 20 DEG C, and the second preset duration is 0.5 minute, and the 3rd preset duration is 2 minutes.

In this embodiment, air-conditioner controls stop valve when systematic parameter reaches default defrost condition in a heating mode Close, and control electric heating part work after the 2 minutes so that air-conditioner is meeting the defrost condition starting stage, first passes through accumulation of heat The heat that device is stored under air conditioner heat-production pattern carries out defrost so that the heat of storage heater storage is utilized effectively, it is to avoid Electric heating part works the waste energy always, has effectively saved the energy, it is to avoid waste, and use cost is reduced, while so that refrigerant Heat is fully absorbed when by the storage heater for being electrically heated part heating, raising flows to the temperature of indoor heat exchanger refrigerant, and then Ensure good heating effect, simultaneously as migrating higher to the temperature of outdoor heat exchanger refrigerant by indoor heat exchanger so that empty Adjusting device can carry out defrost in a heating mode, and the refrigerant of higher temperature is conducive to the outdoor heat exchanger to carry out defrost, it is ensured that room External heat exchanger is quick, thorough defrost, it is to avoid four-way valve commutation make air-conditioner in cooling mode defrost make fluctuations in indoor temperature compared with Greatly, and then the user comfort level and satisfaction that use are improved；By recording the operating time of electric heating part, and in electric heating part work Storage heater thermograph is T0 in 4 minutes by work, and whether it is Ti to be recorded storage heater thermograph after 0.5 minute, judges Ti-T0 More than 50 DEG C of fiducial temperature, if so, control electric heating part is stopped, control stop valve is opened, control four-way reversing valve commutation Make air-conditioner defrost in cooling mode so that commutated by four-way valve in the case where heat-storing material deficiency defrost effect is poor Air-conditioner is carried out defrost in cooling mode, and then ensure promptness, validity, the completeness of air-conditioner defrost, it is ensured that be good Good defrost effect, it is to avoid defrost effect is poor and influence the heating effect of air-conditioner, be effectively guaranteed and good heat effect Really, it is ensured that air-conditioner also can normally run when heat-storing material is not enough and be defrosted, the experience of user is lifted, improves and use The satisfaction that family uses, meanwhile, heat-storing material fault message is pushed and shows, facilitate user to understand air-conditioner accurately and in time Storage heater lack heat-storing material, be conducive to user to supplement heat-storing material in time according to the fault message of heat-storing material；If it is not, i.e. When the judged result whether Ti-T0 is more than fiducial temperature is no, terminate so that in the case of heat-storing material abundance, air-conditioner Continuation is not commutated with heating mode four-way valve and carries out defrost, it is ensured that good defrost effect and heating effect, and lifting user is changing Using the comfort level of air-conditioner when white, the experience of user is lifted, improve the satisfaction that user uses.

In a particular embodiment, the first detection unit and the second detection unit in the defrosting control system that the present invention is provided Can be by one or more microprocessors by one or more microprocessors control, the first judging unit, the second judging unit Device is controlled, and the first execution unit, the second execution unit can be by one or more microprocessors controls.

As shown in Figure 3 a, embodiment in accordance with a further aspect of the present invention, the present invention proposes a kind of air-conditioner 300, bag Include：Defrosting control system 200 described in any of the above-described technical scheme.

The air-conditioner 300 that further aspect of the present invention is provided, including the defrosting control system described in any of the above-described technical scheme 200.The defrosting control system 200 of second aspect embodiment is provided with because of air-conditioner of the invention 300, thus possesses second aspect Whole beneficial effects of embodiment defrosting control system 200, will not be repeated here.

As shown in Figure 3 b, the air-conditioner 300 that the present invention is provided, also includes：Compressor 102；Indoor heat exchanger 104；It is outdoor Heat exchanger 106；Four-way valve 108, is disposed in the interior between heat exchanger 104 and outdoor heat exchanger 106, and two of four-way valve 108 connect The air inlet of mouth connection compressor 102 and gas outlet, one end of the another two orifice indoor heat exchanger 104 of four-way valve 108 With one end of outdoor heat exchanger 106；Throttling arrangement 110, is disposed in the interior the other end and outdoor heat exchanger 106 of heat exchanger 104 The other end between；Accumulation of heat component 112, is arranged between four-way valve 108 and outdoor heat exchanger 106, and accumulation of heat component 112 includes storing Hot device 1122, electric heating part 1124 and temperature-detecting device, storage heater 1122 are used to accommodate heat-storing material, and electric heating part 1124 sets Put on storage heater 1122, for being heated to storage heater 1122, temperature-detecting device is arranged on storage heater 1122, is used for Detection storage heater temperature；Stop valve 114, is arranged between four-way valve 108 and outdoor heat exchanger 106, in parallel with accumulation of heat component 112 Connection.

The air-conditioner 300 that the present invention is provided, by setting accumulation of heat component between four-way valve 108 and outdoor heat exchanger 106 112, when air-conditioner 300 reaches defrost condition in a heating mode, control stop valve 114 is closed, and electric heating part 1124 works right Storage heater 1122 is heated so that storage heater 1122 stores heat by the heat-storing material for accommodating, and electric heating part 1124 is heated Storage heater 1122 makes heat-storing material store sufficient heat, and refrigerant is when by the storage heater 1122 for being electrically heated the heating of part 1124 Heat is fully absorbed, raising flows to the temperature of the refrigerant of indoor heat exchanger 104, and then ensures good heating effect, simultaneously as Migrate higher to the temperature of the refrigerant of outdoor heat exchanger 106 by indoor heat exchanger 104 so that air-conditioner 300 is in a heating mode Also defrost can be carried out, and the refrigerant of higher temperature is conducive to the outdoor heat exchanger 106 to carry out defrost, it is ensured that outdoor heat exchanger 106 is fast Fast, thorough defrost, it is to avoid the commutation of four-way valve 108 makes the defrost fluctuations in indoor temperature considerable influence in cooling mode of air-conditioner 300 The comfort level of user, effectively improves the comfort level that user uses, and improves the satisfaction that user uses；By being arranged on storage heater The temperature-detecting device detection temperature of storage heater 1122 on 1122, and storage heater temperature difference is more than fiducial temperature in Preset Time When control electric heating part 1124 be stopped, control stop valve 114 open, four-way valve 108 commutation make air-conditioner 300 refrigeration mould Defrost under formula so that being commutated by four-way valve 108 in the case where heat-storing material deficiency defrost effect is poor makes air-conditioner 300 exist Defrost is carried out under refrigeration mode, and then ensures promptness, validity, the completeness of the defrost of air-conditioner 300, it is ensured that good defrost Effect, it is to avoid defrost effect is poor and influence the heating effect of air-conditioner 300, be effectively guaranteed good heating effect, protect Card air-conditioner 300 can normally run and be defrosted, the experience of lifting user, the satisfaction that raising user uses, and The storage heater temperature difference terminates when being not more than fiducial temperature so that in the case of heat-storing material abundance, air-conditioner continues to heat mould Formula four-way valve does not commutate carries out defrost, it is ensured that good defrost effect and heating effect, and lifting user uses air-conditioning in defrost The comfort level of device, lifts the experience of user, improves the satisfaction that user uses.Further, by being arranged on four-way valve Stop valve 114 between 108 and outdoor heat exchanger 106 is connected in parallel with accumulation of heat component 112, is conducive to control accumulation of heat component 112 Or the working condition of stop valve 114 is meeting air-conditioner 300 with different mode operations, it is to avoid need to shut down to meet air-conditioner 300 influence the comfortableness that user uses with different mode operations, and then ensure that air-conditioner 300 in the process of running can be with The different pattern of switching, lifts the experience of user, improves the satisfaction that user uses.

In one embodiment of the invention, it is preferable that temperature-detecting device is temperature sensor.

In this embodiment, temperature-detecting device is temperature sensor, temperature sensor cost is relatively low, compact conformation, spirit Sensitivity is higher, can easily be arranged on storage heater 1122, and meets the structure of storage heater 1122, further, temperature inspection It can also be to meet other desired temperature-detecting devices to survey device.Further, temperature-detecting device can be arranged on accumulation of heat The outer surface of storage heater 1122 can also be arranged on inside device 1122, different temperatures detection means and different storage heaters is disclosure satisfy that The demand of 1122 structures, it is applied widely

In one embodiment of the invention, it is preferable that heat-storing material is covert heat-storing material.

In this embodiment, heat-storing material be covert heat-storing material, can stablize, prolonged storing heat, it is to avoid store The temperature of hot device 1122 rises rapid and causes refrigerator oil to be carbonized, while it is frequent to avoid the temperature change of storage heater 1122 from comparatively fast needing Open electric heating part 1124 and produce rush of current, covert heat-storing material ensure that good heating effect and defrost effect, Improve the satisfaction that user uses.Further, covert heat-storing material is at least one of or its combination but not limited to this： Water, paraffin.

In one embodiment of the invention, it is preferable that throttling arrangement 110 is electric expansion valve.

In this embodiment, throttling arrangement 110 is electric expansion valve so that according to the different operational modes of air-conditioner 300 Control electric expansion valve is opened with different aperture threshold values, and then meets the different demands to coolant quantity of the system of air-conditioner 300, It is applied widely, and good heating effect and defrost effect is ensure that, and then improve the satisfaction that user uses.Enter one Step ground, air-conditioner 300 in a heating mode defrost when, electric expansion valve with maximum opening threshold value open, with ensure abundance it is cold Matchmaker's amount carries out energy exchange, it is ensured that good defrost effect and heating effect, improves the satisfaction that user uses.

In a particular embodiment, air-conditioner is heat pump type air conditioner, and in a heating mode, indoor heat exchanger is condenser, Outdoor heat exchanger is evaporator, and refrigerant is changed into the gas of HTHP by compressor compresses, is entered by four-way valve and condensed Device, becomes the liquid of middle temperature high pressure after condenser inhales cold heat release, the liquid of low-temp low-pressure is become after throttling arrangement, by steaming After hair device heat absorption lets cool effect, become the gas of low-temp low-pressure, compressor is returned to by four-way valve, then proceed to circulation.In system Under chill formula, indoor heat exchanger is evaporator, and outdoor heat exchanger is condenser, and it is high that refrigerant is changed into high temperature by compressor compresses The gas of pressure, into outdoor condenser, becomes the liquid of middle temperature high pressure after condenser inhales cold heat release, after throttling arrangement, becomes Into the liquid of low-temp low-pressure, after evaporator heat absorption lets cool effect, become the gas of low-temp low-pressure, pressure is returned to by four-way valve Contracting machine, then proceedes to circulation.

In the present invention, term " multiple " then refers to two or more, unless otherwise clearly restriction.Term " peace The term such as dress ", " connected ", " connection ", " fixation " all should be interpreted broadly, for example, " connection " can be fixedly connected, it is also possible to It is to be detachably connected, or is integrally connected；" connected " can be joined directly together, it is also possible to be indirectly connected to by intermediary.It is right For one of ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be as the case may be understood.

In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that the specific features, structure, material or the feature that are described with reference to the embodiment or example are contained in of the invention at least one real In applying example or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or reality Example.And, the specific features of description, structure, material or feature can in one or more any embodiments or example with Suitable mode is combined.

The preferred embodiments of the present invention are these are only, is not intended to limit the invention, for those skilled in the art For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made, Equivalent, improvement etc., should be included within the scope of the present invention.

Claims (15)

1. a kind of defrosting control method, for air-conditioner, it is characterised in that the air-conditioner includes compressor, four-way valve, outdoor Heat exchanger, accumulation of heat component and stop valve, the accumulation of heat component and the stop valve it is in parallel be arranged on the four-way valve and described Between outdoor heat exchanger, the accumulation of heat component includes storage heater and electric heating part, and the accumulation of heat component can make the air-conditioning Device defrost in a heating mode, the defrosting control method includes：

The air-conditioner in a heating mode, detects the systematic parameter of the air-conditioner；

Judge whether the systematic parameter reaches default defrost condition；

If so, controlling the stop valve to close, controlling the electric heating part work to carry out heating to the storage heater makes the sky Adjust device defrost in a heating mode；

The operating time of the electric heating part is recorded, the storage heater temperature is detected, reaching first in the operating time presets It is T0 by the detected storage heater thermograph during duration, and after the second preset duration, described in detected Storage heater thermograph is Ti；

Judge the storage heater temperature difference Ti-T0 whether more than fiducial temperature；

If so, controlling the electric heating part to be stopped, control the stop valve to open, control the four-way valve commutation to make described Air-conditioner defrost in cooling mode, if it is not, terminating.

2. defrosting control method according to claim 1, it is characterised in that also include：

When it is described judge the storage heater temperature difference Ti-T0 whether more than the fiducial temperature judged result for being when, push And show heat-storing material fault message.

3. defrosting control method according to claim 1 and 2, it is characterised in that the control stop valve is closed, control Making electric heating part work and the storage heater heat makes the specific steps of air-conditioner defrost in a heating mode Including：

The stop valve is controlled to close；

After the 3rd preset duration, controlling the electric heating part work that heating is carried out to the storage heater makes the air-conditioner in system Defrost under heat pattern.

4. defrosting control method according to claim 3, it is characterised in that

First preset duration, second preset duration, the 3rd preset duration are at least one of：The accumulation of heat The relational expression of device volume, the relational expression of the heat-storing material, fixed value.

5. defrosting control method according to claim 4, it is characterised in that also include：

The fiducial temperature is at least one of：The relational expression of the storage heater volume, the relational expression of the heat-storing material, institute State relational expression, the relational expression of second preset duration, relational expression, the fixation of the 3rd preset duration of the first preset duration Value.

6. defrosting control method according to claim 1, it is characterised in that the systematic parameter be at least one of or Its combination：

The temperature of the storage heater, the temperature of the condenser, the run time of the compressor, the compressor operation frequently Rate.

7. defrosting control method according to claim 5, it is characterised in that

First preset duration is 4 minutes, and the fiducial temperature is 50 DEG C, and second preset duration is 0.5 minute, described 3rd preset duration is 2 minutes.

8. a kind of defrosting control system, for air-conditioner, it is characterised in that the defrosting control system includes：

First detection unit, detects the systematic parameter of the air-conditioner for the air-conditioner in a heating mode；

First judging unit, for judging whether the systematic parameter reaches default defrost condition；

First execution unit, for when the judged result of first judging unit is to be, controlling the stop valve to close, control Making the electric heating part work heating is carried out to the storage heater makes air-conditioner defrost in a heating mode, starts second and examines Survey unit and recording unit；

Second detection unit, for detecting the storage heater temperature；

The recording unit, the operating time for recording the electric heating part, when the operating time reaches first and presets When long, the storage heater thermograph that second detection unit is detected is T0, and after the second preset duration, will be described The storage heater thermograph of the second detection unit detection detection is Ti；

Second judging unit, for judging the storage heater temperature difference Ti-T0 whether more than fiducial temperature；

Second execution unit, during for the judged result in second judging unit to be, controls the electric heating part to stop Work, controls the stop valve to open, and controls the four-way valve commutation to make air-conditioner defrost in cooling mode, described When the judged result of the second judging unit is no, terminate.

9. defrosting control system according to claim 8, it is characterised in that also include：

Display unit, for when the judged result of second judging unit is to be, pushing and showing that heat-storing material failure is believed Breath.

10. defrosting control system according to claim 8 or claim 9, it is characterised in that first execution unit also includes：

Cut-off valve control unit, VCU, for when the judged result of first judging unit is to be, controlling the stop valve to close；

Timing unit, records the duration that the stop valve is closed, and when the duration reaches three preset durations, to the electricity Heating member control unit sends enabling signal；

The electric heating part control unit, for according to the enabling signal, controlling the electric heating part work, to the accumulation of heat Device carries out heating makes air-conditioner defrost in a heating mode.

11. defrosting control systems according to claim 10, it is characterised in that

First preset duration, second preset duration, the 3rd preset duration are at least one of：The accumulation of heat The relational expression of device volume, the relational expression of the heat-storing material, fixed value.

12. defrosting control systems according to claim 11, it is characterised in that also include：

The fiducial temperature is at least one of：The relational expression of the storage heater volume, the relational expression of the heat-storing material, institute State relational expression, the relational expression of second preset duration, relational expression, the fixation of the 3rd preset duration of the first preset duration Value.

13. defrosting control systems according to claim 8, it is characterised in that the systematic parameter is at least one of Or its combination：

The temperature of the storage heater, the temperature of the condenser, the run time of the compressor, the compressor operation frequently Rate.

14. defrosting control systems according to claim 12, it is characterised in that

First preset duration is 4 minutes, and the fiducial temperature is 50 DEG C, and first preset temperature is 80 DEG C, described the Two preset temperatures are 20 DEG C, and second preset duration is 0.5 minute, and the 3rd preset duration is 2 minutes.

A kind of 15. air-conditioners, it is characterised in that including：

Defrosting control system as any one of claim 8 to 14.