CN106152675A

CN106152675A - Defrosting method, defrosting control system and refrigerating appliance for refrigerating appliance

Info

Publication number: CN106152675A
Application number: CN201510191057.9A
Authority: CN
Inventors: 张江文; 刘翔宇; 朱卫忠
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Bosch und Siemens Hausgeraete GmbH
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2015-04-21
Filing date: 2015-04-21
Publication date: 2016-11-23

Abstract

A kind of defrosting method for refrigerating appliance, defrosting control system and refrigerating appliance, refrigerating appliance includes the first storeroom and the second storeroom that can distinguish defrost；In defrosting method, it is determined whether the condition starting the second storeroom defrost includes: judging to terminate from described first storeroom defrost, whether the waiting time of process reached for the first appointment time；If terminating from described first storeroom defrost, the waiting time of process is not up to the described first appointment time, it is determined that do not start described second storeroom defrost.During to reduce the second storeroom defrost, the temperature on the first storeroom affects, it is to avoid the temperature of the first storeroom is too high.

Description

Defrosting method, defrosting control system and refrigerating appliance for refrigerating appliance

Technical field

The present invention relates to a kind of defrosting method for refrigerating appliance, defrosting control system and refrigerating appliance.

Background technology

Refrigerator is handed over storage room air heat by low-temperature receiver (such as vaporizer or the wall that cooled down by vaporizer) The temperature changed and reduce in storeroom.When the higher air of temperature and vaporizer or the table cooled down by vaporizer During the contact of face, vaporizer or cooling wall (inwall of such as storeroom) may frostings.At automatic defrosting In program, refrigerator can start thermal source (such as starting defrosting heater) to remove these frosts.

When refrigerator has multiple storeroom (vaporizer or cooling wall) needing defrost, refrigerator is judging The need of when starting a storeroom is started defrost, refrigerator would generally consider the operation of such as compressor The factor such as time, door opening times is to determine the defrost time started of different storeroom independently.

Summary of the invention

It is an object of the invention to provide a kind of new defrosting method for refrigerating appliance, defrosting control system System and refrigerator utensil, to advantageously reduce the impact on the storage ambient of refrigerating appliance of the defrost program.

As an aspect of of the present present invention, it provides a kind of defrosting method for refrigerating appliance, described refrigeration Utensil includes the first storeroom and the second storeroom that can distinguish defrost；Determine whether to start described second The condition of storeroom defrost includes: judging to terminate from described first storeroom defrost, the wait of process Between whether reached for the first appointment time；If the described waiting time is not up to the described first appointment time, sentence Determine not start described second storeroom defrost.

The present invention specifies the time as one of entry condition of the second storeroom defrost, the i.e. second storage using first Hide room after the first storeroom defrost terminates, defrost can be started after certain wait again, and in this section In waiting time, the first storeroom can recover refrigeration so that it is temperature reduces, and then reaches when the waiting time After the first appointment time, restart the second storeroom defrost, to during to reduce the second storeroom defrost The temperature impact of one storeroom, it is to avoid the temperature of the first storeroom is too high.

Should be appreciated that of the present invention to storeroom defrost, including to the vaporizer in order to cold storage room Defrost and/or to the wall defrost cooled down by vaporizer.Refrigerating appliance can remove by starting defrosting heater Frost.

Optionally, it is determined whether the condition starting described second storeroom defrost also includes: judge described Whether the temperature of one storeroom is less than or equal to the first assigned temperature；If the temperature of described first storeroom Do not drop to described first assigned temperature, it is determined that do not start described second storeroom defrost.

First assigned temperature is as starting the supplementary condition of the second storeroom defrost, the most only at the first storage It is possible to the second storeroom is started defrost when the temperature of room is less than or equal to the first assigned temperature, change sentence Talk about, if the temperature of the first storeroom does not drops to the first assigned temperature, even if passing through the first appointment Time, and the second storeroom has defrost to ask, refrigerating appliance does not the most start the second storeroom defrost.When First appointment time met and after the first storeroom has fallen to the first assigned temperature, if the second storeroom There is defrost to ask, then can select to start the second storeroom defrost.Adopt in such a way, the most really When protecting the second storeroom defrost, the temperature on the first storeroom affects, it is to avoid the temperature of the first storeroom is too high And affect the storage ambient of the first storeroom.

In one embodiment, described refrigerating appliance is provided with the first temperature detecting module, is used for detecting institute Whether state the temperature of the first storeroom less than or equal to described first assigned temperature.The temperature of the first storeroom Directly obtained by the first temperature detecting module.

Optionally, it is determined whether the condition starting described first storeroom defrost includes: judge from described the Two storeroom defrosts have terminated, and whether the waiting time of process reached for the second appointment time；If it is described etc. The time for the treatment of is not up to the described second appointment time, it is determined that do not start described first storeroom defrost.

Specify the time as one of entry condition of the first storeroom defrost, the i.e. first storage using second herein Room can start defrost after the second storeroom defrost terminates after certain wait again, and in this section etc. In treating the time, the second storeroom can recover refrigeration so that it is temperature reduces, and then reaches when the waiting time After second appointment time, restart the first storeroom defrost, to second during to reduce the first storeroom defrost The temperature impact of storeroom, it is to avoid the temperature of the second storeroom is too high.

First specify the time, second specify the time can be different according to the particular type of refrigerating appliance, First specify the time, second specify the time concrete duration can by manufacturer in design, in manufacture process Obtain through test, and pre-enter in the control system of refrigerating appliance, or according to system according to refrigeration The parameter intelligent regulations such as the setting of the service condition of utensil, such as user and/or ambient temperature.

In one embodiment, described first the duration of time is specified to meet: described second storeroom defrost Time, the temperature of described first storeroom is without departing from the specified maximum temperature of described first storeroom.Described Two specify the duration of time to meet: during described first storeroom defrost, the temperature of described second storeroom is not Beyond the specified maximum temperature of described second storeroom, and/or the power of the compressor in refrigerating appliance does not surpasses Go out the peak power specified.

In another embodiment, if for a certain storeroom, in short time beyond the specified highest temperature Degree be allow, then first specify the time, second specify the time duration can also be more slightly shorter.

Optionally, it is determined whether the condition starting described first storeroom defrost also includes: judge described Whether the temperature of two storerooms is less than or equal to the second assigned temperature；If the temperature of described second storeroom Do not drop to described second assigned temperature, it is determined that do not start described first storeroom defrost.

Using the second assigned temperature as the supplementary condition starting the first storeroom defrost, the most only in the second storage The temperature hiding room is less than or equal to during the second assigned temperature it is possible to the first storeroom is started defrost, changes Sentence is talked about, if the temperature of the second storeroom does not drops to the second assigned temperature, even if second specifies the time full Foot and the first storeroom have defrost to ask, and refrigerating appliance does not the most start the first storeroom defrost.When second After storeroom has fallen to the second assigned temperature, just can select to start the first storeroom defrost.With so Mode, when can reduce the first storeroom defrost, the temperature on the second storeroom affects, it is to avoid the second storage The temperature of room, Tibetan is too high and affects the storage ambient of the second storeroom.

In one embodiment, described refrigerating appliance is provided with the second temperature detecting module, is used for detecting institute Whether state the temperature of the second storeroom less than or equal to described second assigned temperature.The temperature of the second storeroom Directly obtained by the second temperature detecting module.

Should be appreciated that the first assigned temperature, the second assigned temperature can be according to the particular types of refrigerating appliance And different, the first assigned temperature, the second assigned temperature concrete numerical value can by manufacturer design, Manufacture process obtains through test, and pre-enters in the control system of refrigerating appliance, or according to being System is according to parameter intelligent regulations such as the service condition of refrigerating appliance, the such as setting of user and/or ambient temperatures. But the first assigned temperature, the second assigned temperature are typically below the specified maximum temperature of corresponding storeroom.

Optionally, described refrigerating appliance also includes: the first vaporizer, in order to cool down described first storeroom； Second vaporizer, in order to cool down described second storeroom；Refrigerating circuit, described refrigerating circuit has permissible The first mode of operation mutually switched and the second mode of operation, in this first operative mode: work as refrigeration When agent flows to described first vaporizer to cool down described first storeroom, described cold-producing medium is also from the first evaporation Device flows out and flows into described second vaporizer to cool down described second storeroom；In the second operation mode, Described cold-producing medium only flows into described second vaporizer, and is not passed through described first vaporizer.

It is to say, in refrigerating circuit, cold-producing medium can select to sequentially pass through the first vaporizer, second Vaporizer, or only select through the second vaporizer, now refrigerating appliance is in mixed SAPMAC method state.

Wherein, in the first operation mode, the second storeroom, when carrying out defrost, needs the second storage Room stops refrigeration, then the first storeroom also can not freeze, now the temperature to the first storeroom There is considerable influence, be therefore arranged on after the first storeroom defrost terminates, first the first storeroom recovered refrigeration, Shut down again after its temperature is down to the first assigned temperature and carry out the second storeroom defrost, being so possible to prevent The temperature of the first storeroom is too high.

In the second operation mode, when the first storeroom is when carrying out defrost, it is not necessary to the second storeroom Stopping refrigeration, the temperature of the second storeroom is affected less by the now defrost of the first storeroom.Now set Second appointment time may further ensure that the temperature of the second storeroom was without departing from specified maximum temperature.Meanwhile, Owing to the temperature of storeroom is the highest, during refrigeration, the input power of compressor is the biggest, the second storeroom defrost knot Shu Hou, the temperature of storage ambient is higher, needs bigger compressor horsepower, if the most immediately to first Storeroom starts defrost, it is likely that can cause the too high even overburden of power of refrigerating appliance.Therefore exist After second storeroom defrost terminates, first carry out the defrost of the first storeroom the most immediately, but first to the second storage Hide room and recover refrigeration, after its temperature is down to the second assigned temperature, restarts the first storeroom and carry out defrost, To reduce the input power of refrigerating appliance.

Optionally, described refrigerating appliance also includes: the first vaporizer, in order to cool down described first storeroom； Second vaporizer, in order to cool down described second storeroom；Described first vaporizer, described second vaporizer In parallel.

It is to say, in refrigerating circuit, cold-producing medium can only select to steam through the first vaporizer or second Sending out device, now refrigerating appliance is in parallel recurrent state, between the i.e. first vaporizer and the second vaporizer Substantially being independent of each other, therefore the defrost of a storeroom is little on the impact of another storage compartment temperature, but with Sample is too high in order to avoid the input power of refrigerating appliance, after a storeroom defrost terminates, first passes through one The individual waiting time, until its temperature reduce after, restart another storeroom and carry out defrost, to reduce refrigeration The input power of utensil.

The present invention also provides for a kind of defrosting method for refrigerating appliance, and described refrigerating appliance includes dividing First storeroom of other defrost and the second storeroom；Determine whether to start the bar of described second storeroom defrost Part includes: judge whether described second storeroom has defrost demand；Judge from described first storeroom defrost Terminating, whether the waiting time of process reached for the first appointment time；Judge the temperature of described first storeroom Whether degree is less than or equal to the first assigned temperature；If described second storeroom has defrost demand, and, Terminating from described first storeroom defrost, the waiting time of process reach the described first appointment time or The temperature of described first storeroom is down to described first assigned temperature, it is determined that start described second storeroom Frost.

Here, for " judging whether described second storeroom has defrost demand ", " judge from described first Storeroom defrost has terminated, and whether the waiting time of process reached for the first appointment time " and " judge Whether the temperature of described first storeroom is less than or equal to the first assigned temperature " these judgements, there is no elder generation The requirement of rear order, its order can be arbitrarily devised.

The present invention specifies time, the first assigned temperature as the entry condition of the second storeroom defrost using first One of.On the premise of the second storeroom has defrost demand (or defrost request), if the waiting time is not Reached for the first appointment time, then judge whether temperature is less than the first assigned temperature, if it is, start second Storeroom defrost；If the waiting time reached for the first appointment time, then need not judge temperature again, directly Start the second storeroom defrost.I.e. use waiting time and the comprehensive descision of storage compartment temperature, as long as one Condition meets, and just starts the second storeroom defrost.Its purpose is to make the first storeroom by recovery system Cold temperature when making its temperature reduce to reduce the second storeroom defrost on the first storeroom affects, it is to avoid the The temperature of one storeroom is too high.

Optionally, it is determined whether the condition starting described first storeroom defrost includes: judge described first Whether storeroom has defrost demand；Judging to terminate from described second storeroom defrost, the wait of process Between whether reached for the second appointment time；Judge that whether the temperature of described second storeroom is less than or equal to second Assigned temperature；If described first storeroom has defrost demand, and, from described second storeroom defrost Terminating, the waiting time of process reaches described second appointment time or the temperature of described second storeroom It is down to described second assigned temperature, it is determined that start described first storeroom defrost.

Here, for " judging whether described first storeroom has defrost demand ", " judge from described second Storeroom defrost has terminated, and whether the waiting time of process reached for the second appointment time " and " judge Whether the temperature of described second storeroom is less than or equal to the second assigned temperature " these judgements, there is no elder generation The requirement of rear order, its order can be arbitrarily devised.

The present invention specifies time, the second assigned temperature as the entry condition of the first storeroom defrost using second One of.On the premise of the first storeroom has defrost demand (or defrost request), if the waiting time is not Reached for the second appointment time, then judge whether temperature is less than the second assigned temperature, if it is, start first Storeroom defrost；If the waiting time reached for the second appointment time, then need not judge temperature again, directly Start the first storeroom defrost.I.e. use waiting time and the comprehensive descision of storage compartment temperature, as long as one Condition meets, and just starts the first storeroom defrost.Its purpose is to make the second storeroom by recovery system Cold temperature when making its temperature reduce to reduce the first storeroom defrost on the second storeroom affects, it is to avoid the The temperature of two storerooms is too high.

About the first appointment time, the second appointment time, the first assigned temperature, the setting of the second assigned temperature Put as hereinbefore.The setting of refrigerating appliance is the most as hereinbefore.

As another aspect of the present invention, it also provides for a kind of defrosting control system for refrigerating appliance, Described refrigerating appliance includes the first storeroom and the second storeroom that can distinguish defrost, described defrosting control System includes: memory element, for storing the first appointment time that user sets；Timing unit, is used for Start timing when described first storeroom terminates defrost, and obtained for the first actual time；Comparing unit, Time and described first actual time is specified for the most described first；Performance element, is used for controlling storage Room defrost, and receive the comparative result of described comparing unit；Described performance element starts the second storeroom The condition of frost includes: described first actual time specifies the time more than or equal to described first.

Optionally, described defrosting control system also includes the first temperature detecting module, is used for detecting described The temperature of one storeroom, and obtain the first actual temperature；Described memory element is additionally operable to store user and sets The first assigned temperature；Described comparing unit is additionally operable to the first assigned temperature described in comparison and described first in fact Border temperature；Described performance element starts the condition of described second storeroom defrost and includes: described first storage The temperature of room is less than or equal to described first assigned temperature.

Using the first assigned temperature as one of the entry condition of the second storeroom defrost, the most only in the first storage The temperature hiding room is less than or equal to during the first assigned temperature it is possible to the second storeroom is started defrost, changes Sentence is talked about, if the first storeroom does not drops to the first assigned temperature, even if first specifies the time to meet and the Two storerooms have defrost to ask, and refrigerating appliance does not the most start the second storeroom defrost.When the first storeroom After having fallen to the first assigned temperature, if the second storeroom has defrost to ask, then can select to start Two storeroom defrosts.In this way it is possible to the first storeroom when reducing the second storeroom defrost Temperature affects, it is to avoid the temperature of the first storeroom is too high and affects the storage ambient of the first storeroom.

Optionally, described memory element is additionally operable to store the second appointment time that user sets；Described timing Unit is additionally operable at the end of described second storeroom defrost start timing, and obtains for the second actual time； Described comparing unit is additionally operable to the second appointment time described in comparison and described second actual time；Described execution The condition of unit starting the first storeroom defrost includes: described second actual time is more than or equal to described the Two specify the time.

Optionally, described memory element is additionally operable to store the second assigned temperature that user sets；Described defrost Control system also includes the second temperature detecting module, for detecting the temperature of described second storeroom, and obtains Obtain the second actual temperature；Described comparing unit is additionally operable to the second assigned temperature described in comparison and described second in fact Border temperature；Described performance element starts the condition of the first storeroom defrost and includes: described second storeroom Temperature is less than or equal to described second assigned temperature.

Using the second assigned temperature as one of the entry condition of the first storeroom defrost, the most only in the second storage The temperature hiding room is less than or equal to during the second assigned temperature it is possible to the first storeroom is started defrost, changes Sentence is talked about, if the second storeroom does not drops to the second assigned temperature, even if second specifies the time to meet and the One storeroom has defrost to ask, and refrigerating appliance does not the most start the first storeroom defrost, thereby may be ensured that Refrigeration system has time enough and freezes the second storeroom so that it is temperature reduces.When the second storeroom After having fallen to the second assigned temperature, if the first storeroom has defrost to ask, then can select to start One storeroom defrost.In this way it is possible to the second storeroom when reducing the first storeroom defrost Temperature affects, it is to avoid the temperature of the second storeroom is too high and affects the storage ambient of the second storeroom.

Wherein, the first assigned temperature, the second assigned temperature can have according to the particular type of refrigerating appliance Institute is different, and the first assigned temperature, the concrete numerical value of the second assigned temperature can designed by manufacturer, made Obtain through test during making, and pre-enter in the control system of refrigerating appliance, or according to system The parameter intelligent regulations such as setting according to the service condition of refrigerating appliance, such as user and/or ambient temperature. It is to be understood that, the first assigned temperature, the second assigned temperature must be in the specified highest temperatures of corresponding storeroom Below degree.

Optionally, described refrigerating appliance also includes: the first vaporizer, in order to cool down described first storeroom； Second vaporizer, in order to cool down described second storeroom；Refrigerating circuit, described refrigerating circuit has permissible The first mode of operation mutually switched and the second mode of operation, in this first operative mode: work as refrigeration When agent flows to described first vaporizer to cool down described first storeroom, described cold-producing medium is also from the first evaporation Device flows out and flows into described second vaporizer to cool down described second storeroom；In the second operation mode, Described cold-producing medium only flows into described second vaporizer, and is not passed through described first vaporizer.It is to say, In refrigerating circuit, cold-producing medium can select to sequentially pass through the first vaporizer, the second vaporizer, or choosing Selecting only through the second vaporizer, now refrigerating appliance is in mixed SAPMAC method state.

Wherein, in the first operation mode, the second storeroom, when carrying out defrost, needs the second storage Room stops refrigeration, then the first storeroom also can not freeze, now the temperature to the first storeroom There is considerable influence, be therefore arranged on after the first storeroom defrost terminates, first the first storeroom recovered refrigeration, Shut down and carry out the second storeroom defrost after its temperature is reduced to the first assigned temperature again, so can in case Only the temperature of the first storeroom is too high.

In the second operation mode, when the first storeroom is when carrying out defrost, it is not necessary to the second storeroom Stopping refrigeration, the temperature of the second storeroom is affected less by the now defrost of the first storeroom.Now set Second appointment time may further ensure that the temperature of the second storeroom was without departing from specified maximum temperature.Simultaneously Owing to the temperature of storeroom is the highest, during refrigeration, the input power of compressor is the biggest, the second storeroom defrost knot Shu Hou, the temperature of storage ambient is higher, needs bigger compressor horsepower, if the most immediately to first Storeroom starts defrost, it is likely that can cause the too high even overburden of power of refrigerating appliance.Therefore exist After second storeroom defrost terminates, first carry out the defrost of the first storeroom the most immediately, but first to the second storage Hide room and recover refrigeration, after the temperature of the second storeroom is reduced to the second assigned temperature, restart the first storage Hide room and carry out defrost, to reduce the input power of refrigerating appliance.

The present invention also provides for a kind of defrosting control system for refrigerating appliance, and described refrigerating appliance includes can The first storeroom and the second storeroom with defrost respectively；Described defrosting control system includes: memory element, For storing the first appointment time, the first assigned temperature that user sets；Timing unit, for described First storeroom terminates to start during defrost timing, and obtains for the first actual time；First temperature detecting module, For detecting the temperature of described first storeroom, and obtain the first actual temperature；Comparing unit, for than More described first specifies time and described first actual time, and relatively described first assigned temperature and institute State the first actual temperature；Performance element, is used for controlling storeroom defrost, and receives described comparing unit Comparative result；Described performance element starts the condition of the second storeroom defrost and includes: described first actual time Between specify the time more than or equal to described first, or the temperature of described first storeroom is less than or equal to institute State the first assigned temperature.

Optionally, described defrosting control system also includes the second temperature detecting module, is used for detecting described The temperature of two storerooms, and obtain the second actual temperature；Described memory element is additionally operable to store user and sets Second appointment time, the second assigned temperature；Described timing unit is additionally operable at described second storeroom Start timing at the end of frost, and obtained for the second actual time；Described comparing unit is additionally operable to described in comparison Two specify time and described second actual time, and compare described second assigned temperature and described second in fact Border temperature；Described performance element starts the condition of the first storeroom defrost and includes: described second actual time Specify the time more than or equal to described second, or the temperature of described second storeroom is less than or equal to described Second assigned temperature.

The present invention also provides for a kind of refrigerating appliance, and it includes the defrosting control system described in any of the above-described item.

Accompanying drawing explanation

Fig. 1 shows the refrigerating circuit schematic diagram of refrigerating appliance in first embodiment of the invention；

Fig. 2 is the flow chart one of defrosting method in first embodiment of the invention；

Fig. 3 is the flowchart 2 of defrosting method in first embodiment of the invention；

When Fig. 4 shows the defrosting method using first embodiment of the invention, the power curve of refrigerating appliance And first temperature curve of storeroom；

Fig. 5 is the module map of defrosting control system in first embodiment of the invention；

Fig. 6 is the fundamental diagram one of defrosting control system in first embodiment of the invention；

Fig. 7 is the fundamental diagram two of defrosting control system in first embodiment of the invention；

Fig. 8 shows the refrigerating circuit schematic diagram of refrigerating appliance in second embodiment of the invention.

Detailed description of the invention

Understandable, below in conjunction with the accompanying drawings for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from The specific embodiment of the present invention is described in detail.

First embodiment

The embodiment of the present invention provides a kind of defrosting method for refrigerating appliance, and refrigerating appliance therein is such as Refrigerator, with reference to Fig. 1, including first storeroom the 11, second storeroom 21 that can carry out independent defrost. Wherein, first storeroom the 11, second storeroom 21 can be any type of storeroom, such as cold room, Refrigerating chamber or ice temperature room etc..In the present embodiment, the first storeroom 11 be cold room or ice temperature room, second Storeroom 21 is refrigerating chamber.

Such as Fig. 1, refrigerating appliance has to cool down the refrigerating circuit of each storeroom.Refrigerating circuit includes Compressor 31, condenser 32 and be connected to the multiple vaporizers after condenser 32.

In the present embodiment, vaporizer includes the first vaporizer 12 cooling down the first storeroom 11, in order to Cool down the second vaporizer 22 of the second storeroom 21.Connect before the entrance of each vaporizer 12,22 and have Capillary tube 33.

Wherein, the arrival end of first vaporizer the 12, second vaporizer 22 is connected in parallel, therefore, and refrigeration Loop includes having the first branch road L1 of the first vaporizer 12, have the second branch road of the second vaporizer 22 L2.First branch road L1 is connected to the second branch road L2 at the second vaporizer at the port of export of the first vaporizer 12 The arrival end of 22.That is: the first branch road L1 is weighing with the second branch road L2 after the first vaporizer 12 Close.

Cold-producing medium is compressed by compressor 31 in entering condenser 32 afterwards and is condensed and dispels the heat.From condenser 32 cold-producing mediums out can selectively enter different branch to freeze to different storerooms and to pass through electromagnetism Valve 34 determines the flow direction from condenser 32 cold-producing medium out.It is to be understood that, it is also possible to use difference Valve open or close different branch roads.

Refrigerating circuit has the first mode of operation and the second mode of operation that can mutually switch, and passes through electromagnetism Valve 34 controls:

In the first operation mode, first branch road L1: refrigerant flow direction the first vaporizer opened by electromagnetic valve 34 12 to cool down the first storeroom 11, and cold-producing medium flows into the second vaporizer after flowing out the first vaporizer 12 22 to cool down the second storeroom 21；

In the second operation mode, electromagnetic valve 34 is opened the second branch road L2: cold-producing medium and is only flowed into the second evaporation Device 22, and it is not passed through the first vaporizer 12.

With this, refrigerating circuit can switch between two mode of operations.

With reference to Fig. 2, in the defrosting method of the present embodiment: determine whether to start the second storeroom 21 defrost Condition include: judging to terminate from the first storeroom 11 defrost, whether the waiting time of process reaches the One specifies the time；If the waiting time was not up to for the first appointment time, do not start the second storeroom 21 defrost.

Further, such as Fig. 2, it is determined whether the condition starting the second storeroom 21 defrost also includes: sentence Whether the temperature of fixed first storeroom 11 is less than or equal to the first assigned temperature；If the first storeroom 11 Temperature do not drop to the first assigned temperature, it is determined that do not start the second storeroom 21 defrost.

Wherein, it is judged that whether the temperature of the first storeroom 11 is less than or equal to the mode of the first assigned temperature is: First temperature detecting module is set in refrigerating appliance, the least for the temperature of detection the first storeroom 11 In or equal to the first assigned temperature.It is to say, the temperature of the first storeroom 11 is by the first temperature detection mould Block directly obtains.Wherein, the temperature during the first temperature detecting module can be provided in the first storeroom 11 Sensor etc..

The present embodiment using the first assigned temperature as the supplementary condition of the second storeroom 21 defrost, if first The temperature of storeroom 11 does not drops to the first assigned temperature, even if passing through for the first appointment time, and second Storeroom 21 has defrost to ask, and refrigerating appliance does not the most start the second storeroom 21 defrost.When first refers to Fix time and meet and after the first storeroom 11 has fallen to the first assigned temperature, if the second storeroom 21 There is defrost to ask, then can select to start the second storeroom 21 defrost.

Further, with reference to Fig. 3, in the defrosting method of the present embodiment, it is determined whether start the first storeroom The condition of 11 defrosts includes: judging to terminate from the second storeroom 21 defrost, and whether the waiting time of process Reached for the second appointment time；If the waiting time was not up to for the second appointment time, do not start the first storeroom 11 defrosts.

Further, such as Fig. 3, it is determined whether the condition that the first storeroom 11 is carried out defrost also includes: Judge that whether the temperature of the second storeroom 21 is less than or equal to the second assigned temperature；If the second storeroom 21 Temperature do not drop to the second assigned temperature, it is determined that do not start the first storeroom 11 defrost.

In the present embodiment, using the second assigned temperature as the supplementary condition of the first storeroom 11 defrost, if The temperature of the second storeroom 21 does not drops to the second assigned temperature, even if second specifies the time to meet and the first storage Hiding room 11 has defrost to ask, and refrigerating appliance does not the most start the first storeroom 11 defrost.When the second storage After room 21 has fallen to the second assigned temperature, just can select to start the first storeroom 11 defrost.

Wherein, it is judged that whether the temperature of the second storeroom 21 is less than or equal to the mode of the second assigned temperature is: Being provided with the second temperature detecting module in refrigerating appliance, whether the temperature for detection the second storeroom 21 is less than Or equal to the second assigned temperature.The temperature of the second storeroom 21 is directly obtained by the second temperature detecting module.

The principle set above-mentioned defrosting method below is described in detail:

For refrigerating appliance, the temperature between storeroom is can be interactional.If when a storage Hiding room defrost to terminate, and then another storeroom shuts down defrost, then it would be possible to cause previous defrost The temperature of storeroom again go up, the most specified maximum temperature.Here specified maximum temperature, The peak of the temperature range that corresponding storeroom can reach, such as turn-on temperature.If the temperature of storeroom Degree is long-time higher than specified maximum temperature, and food or other article will lose due cold preservation or freezing environment, And it is unfavorable for food preservation.

In the present embodiment, such as Fig. 1, no matter cold-producing medium flows in the first branch road L1 or the second branch road L2 Time dynamic, finally it is required for flowing to cool down the second vaporizer 22 of the second storeroom 21, say, that the Two vaporizers 22 are the common return of refrigerating circuit.

When the second storeroom 21 is when carrying out defrost, need to stop freezing to the second storeroom 21, first Storeroom 11 then can not freeze, therefore second storeroom 21 defrost temperature to the first storeroom 11 The impact of degree is relatively big, i.e. refrigerating chamber defrost is bigger on the impact of ice temperature room.Therefore, when the first storeroom 11 After defrost terminates, needed to wait for for the first appointment time, in during this period of time, then the first storeroom 11 is recovered system Cold, treat the temperature of the first storeroom 11 be reduced to a certain degree (such as temperature reach above-mentioned first specify temperature Degree) after, if the second storeroom 21 has defrost demand, just the second storeroom 21 is carried out defrost, no Then, after terminating due to the first storeroom 11 defrost, its temperature rises, if now start the second storage at once Hide the defrost of room 21, then the temperature of the first storeroom 11 can be caused to continue to raise, even overflow constant temperature Degree scope.

Wherein, the first appointment time typically could be arranged to several hours, such as 5～8 hours.First refers to Fixed temperature is typically set in below the specified maximum temperature of the second storeroom 21.

When the first storeroom 11 is when carrying out defrost, it is not necessary to the second storeroom 21 to be stopped refrigeration, pressure Contracting machine 31 still can be started shooting, and the second storeroom 21 can recover refrigeration, therefore after defrost terminates immediately The temperature of the second storeroom 21 is affected less by the defrost of the first storeroom 11, say, that if needed Cold room is carried out defrost, owing to the defrost of cold room does not affect the refrigeration of refrigerating chamber, therefore to freezing It is less that the temperature of room affects nature.The most in certain embodiments, if only considering the second storeroom 21 Temperature, then without the waiting time, and directly can carry out defrost to the first storeroom 11.The most not Need to arrange the second appointment time, the second assigned temperature, and the second temperature detecting module.

But owing to the temperature of storeroom is the highest, during refrigeration, the input power of compressor is the biggest, the second storeroom After defrost terminates, the temperature of storage ambient is higher, needs bigger power, if the most immediately to first Storeroom starts defrost, it is likely that can cause the too high even overburden of power of refrigerating appliance.

Therefore, in the present embodiment, before starting the first storeroom 11 defrost, also judge from second Storeroom 21 defrost has terminated whether the waiting time of process reached for the second appointment time, and determines whether Whether the temperature of the second storeroom 21 is down to the second assigned temperature, the while of to avoid with heater and compressor Run and cause power excessive.Thus, after the second storeroom 21 defrost terminates, though the first storage There is defrost demand room 11, as long as second specifies the time for meeting or the second assigned temperature not met, the most not Start the first storeroom 11 defrost.

In the present embodiment, the first assigned temperature, the second assigned temperature and first specify the time, second The concrete numerical value of appointment time can be obtained through test in design, manufacture process by manufacturer, and in advance First input in the control system of refrigerating appliance.For the refrigerating appliance of a certain model, its first appointment temperature Degree, the second assigned temperature and the first appointment time, the second appointment time are usually a constant, and i.e. one The individual changeless time period.In other embodiments, the first assigned temperature, the second assigned temperature and First specify the time, second specify the time can also be by control system along with the service condition of refrigerating appliance Intelligent adjustment.But the setting of these numerical value it suffices that, when a storeroom defrost, another storage The temperature of room without departing from specified maximum temperature, and/or, the power of refrigerating appliance will not be excessive.Here " mistake Greatly ", the rated maximum power beyond equipment can be referred to, or beyond the power upper limit being manually set.

In other embodiments, the first assigned temperature, the second assigned temperature and first specify the time, the Two arranging of time of appointment can more loosely, such as a certain storeroom, if exceeded in short time Specified maximum temperature be allow, then the first assigned temperature, the second assigned temperature can be higher, Or first specify the time, second specify the time can be the most shorter, such as, if timing unit Timing has when necessarily postponing, then first specify the time, second specify the time can also be more slightly shorter, but all Must be limited not affect refrigeration.

Showing when the second storeroom 21 defrost with reference to Fig. 4, Fig. 4, the temperature of the first storeroom 11 becomes The changed power situation of change situation and refrigerating appliance.Wherein abscissa represents the time, vertical coordinate generation respectively The power of table refrigerating appliance and the temperature of the first storeroom 11, curve 1 is the power curve of refrigerating appliance, Curve 2 is the temperature curve of the first storeroom 11, and curve 3 is the specified highest temperature of the second storeroom 21 Degree line, curve 4 is the peak power line specified of refrigerating appliance, and T1 is that the first storeroom 11 defrost terminates Time, T2 is that the second storeroom 21 defrost starts the time, and the difference of T2 Yu T1 is Δ T, and Δ T is wait Time, wherein waiting time Δ T is more than or equal to the first appointment time.

Figure 4, it is seen that after waiting time Δ T reached for the first appointment time, the second storeroom During 21 beginning defrost, the temperature of the first storeroom 11 is able to maintain that below specified maximum temperature, thus protects Demonstrate,prove its refrigeration；Within the power of refrigerating appliance can also remain at the peak power specified simultaneously.Need It should be noted that " waiting time reached for the first appointment time " simply starts the second storeroom 21 defrost Essential condition, but be not sufficient condition, say, that " waiting time reached for the first appointment time " is Start one of condition of the second storeroom 21 defrost.

Such as Fig. 2, Fig. 3, start refrigerating appliance defrost and also need to judge whether the storeroom of correspondence has defrost to need Ask, i.e. determine whether that starting defrost also includes other conditions, when starting the second storeroom 21/ first storeroom When other conditions of 11 defrosts are also satisfied by, refrigerating appliance just can start the storeroom defrost of correspondence.Start Other conditions of first storeroom 11/ second storeroom 21 defrost can also include, door opening times, compression Machine 31 is for the single available machine time of the second storeroom 21, and compressor 31 is for the second storeroom 21 Set available machine time, and/or the overall work time etc. of refrigerating appliance.Refrigerating appliance can be based on these Part judges whether the first storeroom or the second storeroom have defrost demand, judges another storeroom the most again Defrost terminate whether to pass through predetermined time interval, if it is, start the defrost of corresponding storeroom, If it is not, wait until reaching predetermined time interval and starting again the storeroom defrost having defrost demand.

In other embodiments, the first assigned temperature, the second assigned temperature can be not provided with, when the first storage Hide room or the second storeroom when having defrost demand, only judge from another storeroom defrost terminate through etc. Whether the time for the treatment of meets the corresponding appointment time.Or, the first assigned temperature, the second finger can be only set Fixed temperature, when the first storeroom or the second storeroom have defrost demand, only judges from another storeroom Whether temperature meets corresponding assigned temperature.

With reference to Fig. 1 and combine 5, the embodiment of the present invention also provides for a kind of defrosting control system for refrigerating appliance System, refrigerating appliance includes the first storeroom 11 and the second storeroom 21 that can distinguish defrost.Wherein freeze The concrete structure of utensil can refer to Fig. 1, and in refrigerating circuit, the setting of each parts can refer to aforementioned for Fig. 1's Describe, do not repeat them here.

Such as Fig. 5-6, defrosting control system includes:

Memory element, for storing the first appointment time that user sets；

Timing unit, for starting timing when the first storeroom 11 terminates defrost, and it is actual to obtain first Time；

Comparing unit, is used for comparing the first appointment time and the first actual time；

Performance element, is used for controlling storeroom defrost, and receives the comparative result of comparing unit；

Performance element starts the condition of the second storeroom 21 defrost and includes: the first actual time was more than or equal to First specifies the time.

Further, defrosting control system also includes temperature detecting unit, and temperature detecting unit includes first Temperature detecting module, for the temperature of detection the first storeroom 11, and obtains the first actual temperature；Storage Unit is additionally operable to store the first assigned temperature that user sets；Comparing unit is additionally operable to compare the first appointment temperature Degree and the first actual temperature；Performance element starts the condition of the second storeroom 21 defrost and includes: the first storage The temperature of room 11 is less than or equal to the first assigned temperature.

Using the first assigned temperature as one of the entry condition of the second storeroom 21 defrost, the most only first It is possible to the second storeroom 21 is started when the temperature of storeroom 11 is less than or equal to the first assigned temperature Defrost, when reducing the second storeroom 21 defrost further, the temperature on the first storeroom 11 affects.

Show that defrosting control system controls the operation principle of the second storeroom 21 defrost with reference to Fig. 6, Fig. 6. At the end of first storeroom 11 defrost, timing unit starts timing, obtained for the first actual time, and by than First actual time and the first appointment time are compared by relatively unit: reach first when the first actual time During the appointment time, producing timing signal and timing signal is sent to performance element, performance element will meter Time signal as one of condition starting the second storeroom 21 defrost.Meanwhile, temperature detecting unit detection the The temperature of one storeroom 11, and obtain the first actual temperature, and by comparing unit by the first actual temperature and First assigned temperature compares: when the first actual temperature is down to the first assigned temperature, produces temperature letter Number and temperature signal is sent to performance element, performance element using temperature signal as start second storage One of condition of room 21 defrost.Wherein, performance element can include some modules, be respectively used to receive / send signal, and be used for controlling storeroom startup or terminating defrost.

Further, memory element is additionally operable to store the second appointment time that user sets；Timing unit is also For starting timing at the end of the second storeroom 21 defrost, and obtained for the second actual time；Comparing unit It is additionally operable to compare the second appointment time and the second actual time；Performance element starts the first storeroom 11 defrost Condition include: the second actual time more than or equal to second appointment the time.

Specify the time as one of entry condition of the first storeroom 11 defrost, the i.e. first storage using second herein Hide room 11 and after the second storeroom 21 defrost terminates, defrost can be started after certain wait again, and Within this period of waiting time, the second storeroom 21 can recover refrigeration so that it is temperature reduce, then when etc. After the time reached for the second appointment time, restart the first storeroom 11 defrost, to reduce the first storeroom During 11 defrost, the temperature on the second storeroom 21 affects, it is to avoid the temperature of the second storeroom 21 is too high.

Further, memory element is additionally operable to store the second assigned temperature that user sets；Temperature detection list Unit also includes the second temperature detecting module of the temperature for detecting the second storeroom 21, and it is real to obtain second Border temperature；Comparing unit is additionally operable to compare the second assigned temperature and the second actual temperature；Performance element starts The condition of the first storeroom 11 defrost includes: the temperature of the second storeroom 21 is less than or equal to the second appointment Temperature.

Using the second assigned temperature as one of the entry condition of the first storeroom 11 defrost, the most only second It is possible to the first storeroom 11 is started when the temperature of storeroom 21 is less than or equal to the second assigned temperature Defrost, when avoiding the first storeroom defrost further, the temperature on the second storeroom affects.

The first storeroom is controlled for being illustrated defrosting control system in the second with reference to Fig. 7, Fig. 711The operation principle of defrost.At the end of second storeroom 21 defrost, timing unit starts timing, obtains the Two actual tives, and compared by the second actual time of comparing unit and the second appointment time.When second When reaching for the second appointment time actual time, produce timing signal and be sent to perform list by timing signal Unit, performance element using timing signal as one of condition starting the first storeroom 11 defrost.Meanwhile, temperature Degree detector unit detects the temperature of the second storeroom 21, and obtains the second actual temperature, and by comparing unit Second actual temperature and the second assigned temperature are compared: when the second actual temperature is down to the second appointment temperature When spending, producing temperature signal and temperature signal is sent to performance element, performance element is by temperature signal As one of condition starting the first storeroom 11 defrost.

In the present embodiment, the first assigned temperature, the second assigned temperature and first specify the time, second The concrete numerical value of appointment time can be obtained through test in design, manufacture process by manufacturer, and in advance First input in the control system of refrigerating appliance.For the refrigerating appliance of a certain model, its first appointment temperature Degree, the second assigned temperature and the first appointment time, the second appointment time are usually a constant, and i.e. one The individual changeless time period.In other embodiments, the first assigned temperature, the second assigned temperature and First specify the time, second specify the time can also be by control system along with the service condition of refrigerating appliance Intelligent adjustment.But the setting of these numerical value it suffices that, when a storeroom defrost, another storage The temperature of room without departing from specified maximum temperature, and/or, the power of refrigerating appliance will not be excessive, " mistake here Greatly ", the rated maximum power beyond equipment can be referred to, or beyond the power upper limit being manually set.

If as before, when a storeroom defrost terminates, and and then another storeroom shuts down defrost, then It would be possible to cause the temperature of the storeroom of previous defrost again to be gone up, exceed specified maximum temperature, cause Making food or other article will lose due cold preservation or freezing environment, time one length then can cause refrigeration to be lost Effect.Therefore the present embodiment is disposed therein after a storeroom defrost terminates, and must wait until that its temperature is down to one After determining degree, then can carry out the defrost of another storeroom, to ensure refrigeration.

As previously described, because the temperature of the first storeroom 11 is affected relatively big by the defrost of the second storeroom 21, Therefore select to arrange the first assigned temperature.And the temperature that the defrost of the first storeroom 11 is to the second storeroom 21 Degree impact is less, the most in other embodiments, after the first storeroom 11 defrost terminates, the second storage Before room 21 starts defrost, it is also possible to do not judge the temperature of the second storeroom, once the first having of storeroom Frost request then starts its defrost, as long as the power of refrigerating appliance will not be excessive.

It should be noted that " temperature of storeroom is down to assigned temperature " simply starts a certain storeroom defrost Essential condition, but be not necessarily sufficient condition, say, that the temperature conditions of storeroom can be Start one of condition of a certain storeroom defrost.Such as Fig. 6, Fig. 7, start refrigerating appliance defrost and also need to sentence Disconnected corresponding storeroom is with or without defrost demand, when the second storeroom 21/ first storeroom 11 has defrost demand Time, refrigerating appliance just can start the storeroom defrost of correspondence.Need by other conditions with or without defrost demand Judging, other conditions starting the second storeroom 21 defrost can also include heater on time, open Door number of times, compressor 31 are for the single available machine time of the second storeroom 21, and compressor 31 is for second The set available machine time of storeroom 21, and the overall work time etc. of refrigerating appliance.

In other embodiments, first vaporizer the 12, second vaporizer 12 of refrigerating appliance can also be in parallel, Then, cold-producing medium only flows to the first vaporizer 12 to cool down the first storeroom 11, or only flows to the second evaporation Device 22 is to cool down the second storeroom 21.

Now, substantially it is independent of each other between the first vaporizer 12 and the second vaporizer 22, a therefore storage The defrost hiding room is little on the impact of another storage compartment temperature.But it is same in order to avoid compressor 31 input work Rate is too high, after a storeroom defrost terminates, after its temperature is reduced to assigned temperature, restarts another One storeroom carries out defrost, to reduce the input power of compressor.It is to say, institute in the present embodiment Defrosting method and the defrosting control system stated still are suitable for.

In other embodiments, defrosting control system can only be judged by temperature or waiting time be No startup a certain storeroom defrost.

The embodiment of the present invention also provides for a kind of refrigerating appliance, and it includes the defrosting control system of any of the above-described.

Second embodiment

With reference to Fig. 8, the defrosting method of the present embodiment is identical with embodiment one, and the difference with above-described embodiment exists In, the refrigerating appliance of this enforcement includes three storerooms, respectively cold room a1, ice temperature room b1, freezing Room c1, and for cooling down the refrigerator evaporator a2 of cold room a1, ice temperature room vaporizer b2 and cold Freeze room vaporizer c2.

The arrival end of three vaporizers a2, b2, c2 is connected in parallel, and refrigerating circuit includes having cold room The first branch road L1 of vaporizer a2, there is the second branch road L2 of ice temperature room vaporizer b2, and have cold Freeze the 3rd branch road L3 of room vaporizer c2.First branch road L1 refrigerator evaporator a2 the port of export, Two branch road L2 are connected to the 3rd branch road L3 at freezer evaporator at the port of export of ice temperature room vaporizer b2 The port of export of c2.

Now, refrigerating appliance has mixed cold three-circulation refrigerating system.

Refrigerating circuit has three mode of operations.

In the first operation mode, the first branch road L1: refrigerant flow direction cold preservation opened by electromagnetic valve 341,342 Room vaporizer a2, to cool down cold room a1, then flows out from refrigerator evaporator a2 and flows into refrigerating chamber and steam Send out device from c2 to cool down refrigerating chamber c1；

In the second operation mode, the second branch road L2: refrigerant flow direction ice temperature opened by electromagnetic valve 341,342 Room vaporizer b2, to cool down ice temperature room b1, flows out from ice temperature room vaporizer b2 after people and flows into refrigerating chamber and steam Send out device from c2 to cool down refrigerating chamber c1；

In the third mode of operation, the 3rd branch road L3 opened by electromagnetic valve 341,342: cold-producing medium only flows into cold Freeze room vaporizer c2, and be not passed through refrigerator evaporator a2, ice temperature room vaporizer b2.

With this, refrigerating circuit can switch between three mode of operations.

Wherein it is possible to two storerooms will the most arbitrarily be chosen, and using one of them as the first storage it is, Another, as the second storeroom, is then suitable for defrosting method and the defrosting control system of first embodiment. It can be seen that no matter cold-producing medium first passes through cold room a1 or through ice temperature room b1, the most all through supercool Loop and circulation is realized, say, that in whole refrigerating circuit, freezer evaporator c2 after freezing room c1 As common return.

As can be seen here, when refrigerating chamber c1 defrost, because freezer evaporator c2 is common return, now Compressor 31 needs to stop, and cold room a1 and ice temperature room b1 can not freeze；

And during cold room a1 defrost, compressor 31 can be started shooting, refrigerating chamber c1 and ice temperature room b1 continues system Cold, thus by temperature affected less.

During same ice temperature room b1 defrost, refrigerating chamber c1 and cold room a1 continues refrigeration, the temperature shadow being subject to Ring the least.

Visible, for such refrigerating appliance, to other storeroom during refrigerating chamber c1 defrost Temperature impact is relatively big, and the waiting time can arrange longer.And cold room a1 and ice temperature room b1 two storage Hide the defrost between room little on the impact of temperature each other, the temperature of refrigerating chamber c1 is affected the least, during wait Between can arrange the most shorter, it might even be possible to be not provided with the waiting time, but institute in first embodiment State, within now reasonably the waiting time can make the power of refrigerating appliance maintain the peak power specified.

In practical operation, if estimate the temperature of storeroom with the length of waiting time, the most all storages The waiting time hiding the defrost between room can be unified to set unanimously, so can simplify program.

Although present disclosure is as above, but the present invention is not limited to this.Any those skilled in the art, Without departing from the spirit and scope of the present invention, all can make various changes or modifications, therefore the guarantor of the present invention The scope of protecting should be as the criterion with claim limited range.

Claims

1., for a defrosting method for refrigerating appliance, described refrigerating appliance includes the first storage that can distinguish defrost Hide room and the second storeroom；

It is characterized in that, it is determined whether the condition starting described second storeroom defrost includes: judge from institute Stating the first storeroom defrost to have terminated, whether the waiting time of process reached for the first appointment time；

If terminating from described first storeroom defrost, the waiting time of process is not up to described first and refers to Fix time, it is determined that do not start described second storeroom defrost.

2. defrosting method as claimed in claim 1, it is characterised in that determine whether to start described second storage The condition of room defrost also includes: judge that whether the temperature of described first storeroom is less than or equal to the first finger Fixed temperature；

If the temperature of described first storeroom does not drops to described first assigned temperature, it is determined that do not start described Second storeroom defrost.

3. defrosting method as claimed in claim 1, it is characterised in that determine whether to start described first storage The condition of room defrost includes: judging to terminate from described second storeroom defrost, the waiting time of process Whether reached for the second appointment time；

If terminating from described second storeroom defrost, the waiting time of process is not up to described second and refers to Fix time, it is determined that do not start described first storeroom defrost.

4. defrosting method as claimed in claim 3, it is characterised in that determine whether to start described first storage The condition of room defrost also includes: judge that whether the temperature of described second storeroom is less than or equal to the second finger Fixed temperature；

If the temperature of described second storeroom does not drops to described second assigned temperature, it is determined that do not start described First storeroom defrost.

5. the defrosting method as described in any one of claim 1-4, it is characterised in that described refrigerating appliance also wraps Include:

First vaporizer, in order to cool down described first storeroom；

Second vaporizer, in order to cool down described second storeroom；

Refrigerating circuit, described refrigerating circuit has the first mode of operation that can mutually switch and the second work Pattern, in this first operative mode:

When the first vaporizer described in refrigerant flow direction is to cool down described first storeroom, described cold-producing medium is also Flow out from the first vaporizer and flow into described second vaporizer to cool down described second storeroom；

In the second operation mode, described cold-producing medium only flows into described second vaporizer, and is not passed through described First vaporizer.

6. the defrosting method as described in any one of claim 1-4, it is characterised in that described refrigerating appliance also wraps Include:

First vaporizer, in order to cool down described first storeroom；

Second vaporizer, in order to cool down described second storeroom；

Described first vaporizer and described second vaporizer are in parallel.

7., for a defrosting method for refrigerating appliance, described refrigerating appliance includes the first storage that can distinguish defrost Hide room and the second storeroom；

It is characterized in that, it is determined whether the condition starting described second storeroom defrost includes:

Judge whether described second storeroom has defrost demand；

Judging to terminate from described first storeroom defrost, whether the waiting time of process reaches the first appointment Time；

Judge that whether the temperature of described first storeroom is less than or equal to the first assigned temperature；

If described second storeroom has defrost demand, and, terminate from described first storeroom defrost, The waiting time of process reaches the temperature of described first appointment time or described first storeroom and is down to described First assigned temperature, it is determined that start described second storeroom defrost.

8. defrosting method as claimed in claim 7, it is characterised in that determine whether to start described first storage The condition of room defrost includes:

Judge whether described first storeroom has defrost demand；

Judging to terminate from described second storeroom defrost, whether the waiting time of process reaches the second appointment Time；

Judge that whether the temperature of described second storeroom is less than or equal to the second assigned temperature；

If described first storeroom has defrost demand, and, terminate from described second storeroom defrost, The waiting time of process reaches the temperature of described second appointment time or described second storeroom and is down to described Second assigned temperature, it is determined that start described first storeroom defrost.

9., for the defrosting control system of refrigerating appliance, described refrigerating appliance includes distinguishing the of defrost One storeroom and the second storeroom；

It is characterized in that, described defrosting control system includes:

Memory element, for storing the first appointment time that user sets；

Timing unit, for starting timing when described first storeroom terminates defrost, and it is real to obtain first The border time；

Comparing unit, specifies time and described first actual time for the most described first；

Performance element, is used for controlling storeroom defrost, and receives the comparative result of described comparing unit；

Described performance element starts the condition of the second storeroom defrost and includes: described first actual time is more than Or specify the time equal to described first.

10. defrosting control system as claimed in claim 9, it is characterised in that described defrosting control system is also wrapped Including the first temperature detecting module, for detecting the temperature of described first storeroom, and it is actual to obtain first Temperature；

Described memory element is additionally operable to store the first assigned temperature that user sets；

Described comparing unit is additionally operable to the first assigned temperature described in comparison and described first actual temperature；

Described performance element starts the condition of described second storeroom defrost and includes: described first storeroom Temperature is less than or equal to described first assigned temperature.

11. defrosting control system as claimed in claim 9, it is characterised in that described memory element is additionally operable to deposit The second appointment time that storage user sets；

Described timing unit is additionally operable at the end of described second storeroom defrost start timing, and obtains the Two actual tives；

Described comparing unit is additionally operable to the second appointment time described in comparison and described second actual time；

Described performance element starts the condition of the first storeroom defrost and includes: described second actual time is more than Or specify the time equal to described second.

12. defrosting control system as claimed in claim 11, it is characterised in that described memory element is additionally operable to deposit The second assigned temperature that storage user sets；

Described defrosting control system also includes the second temperature detecting module, is used for detecting described second storeroom Temperature, and obtain the second actual temperature；

Described comparing unit is additionally operable to the second assigned temperature described in comparison and described second actual temperature；

Described performance element starts the condition of the first storeroom defrost and includes: the temperature of described second storeroom Less than or equal to described second assigned temperature.

13. defrosting control system as described in any one of claim 9-12, it is characterised in that described refrigerating appliance Also include:

First vaporizer, in order to cool down described first storeroom；

Second vaporizer, in order to cool down described second storeroom；

14. defrosting control system as described in any one of claim 9-12, it is characterised in that described refrigerating appliance Also include:

First vaporizer, in order to cool down described first storeroom；

Second vaporizer, in order to cool down described second storeroom；

Described first vaporizer and described second vaporizer are in parallel.

15. 1 kinds of defrosting control system for refrigerating appliance, described refrigerating appliance includes distinguishing the of defrost One storeroom and the second storeroom；

It is characterized in that, described defrosting control system includes:

Memory element, for storing the first appointment time, the first assigned temperature that user sets；

First temperature detecting module, for detecting the temperature of described first storeroom, and it is actual to obtain first Temperature；

Comparing unit, specifies time and described first actual time for the most described first, and compares Described first assigned temperature and described first actual temperature；

Described performance element starts the condition of the second storeroom defrost and includes: described first actual time is more than Or specify the time equal to described first, or the temperature of described first storeroom is less than or equal to described first Assigned temperature.

16. defrosting control system as claimed in claim 15, it is characterised in that described defrosting control system is also wrapped Including the second temperature detecting module, for detecting the temperature of described second storeroom, and it is actual to obtain second Temperature；

Described memory element is additionally operable to store the second appointment time, the second assigned temperature that user sets；

Described comparing unit is additionally operable to the second appointment time described in comparison and described second actual time, and Relatively described second assigned temperature and described second actual temperature；

Described performance element starts the condition of the first storeroom defrost and includes: described second actual time is more than Or specify the time equal to described second, or the temperature of described second storeroom is less than or equal to described second Assigned temperature.

17. 1 kinds of refrigerating appliances, it is characterised in that include described in claim 9-14 or any one of 15-16 Defrosting control system.