CN109764609A - Refrigerator and its defrosting control method - Google Patents
Refrigerator and its defrosting control method Download PDFInfo
- Publication number
- CN109764609A CN109764609A CN201811625555.XA CN201811625555A CN109764609A CN 109764609 A CN109764609 A CN 109764609A CN 201811625555 A CN201811625555 A CN 201811625555A CN 109764609 A CN109764609 A CN 109764609A
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- Prior art keywords
- temperature
- defrost
- evaporator
- refrigerator
- heating
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000010257 thawing Methods 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 235000013305 food Nutrition 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
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- Defrosting Systems (AREA)
Abstract
The present invention provides a kind of defrosting control method of refrigerator, the defrosting control method includes: and to obtain evaporator temperature T0 into Auto-Sensing Mode；Set the size of evaporator temperature T0 and opening temperature Ta described in opening temperature Ta and comparison；Judge that the evaporator temperature T0 is greater than opening temperature Ta, into circulation defrost pattern；Setting cycle-index n and the heating defrost for executing n period；The wherein defrost step of signal period are as follows: monitor and obtain freezer temperature T2；When judging that the freezer temperature T2 is less than or equal to minimum threshold temperature Tb, heating defrost is opened；When judging that the freezer temperature T2 is greater than or equal to maximum threshold temperature Tc, heating defrost is closed.By circulation defrost work in the present invention, the temperature fluctuation generated when defrost is greatly reduced, the time interval of defrost is also reduced, both ensure that evaporator has good working environment, in turn ensures the good effect that keeps in cold storage in refrigerator compartment.
Description
Technical field
The present invention relates to a kind of refrigerator and its defrosting control method, especially a kind of refrigerator that can carry out multiple defrost and its
Defrosting control method.
Background technique
In existing refrigerator, general defrost control mode is mostly that the single temperature to evaporator cabin is monitored, when
Defrosting sensor detects that temperature heating reaches to a certain degree, i.e., after temperature is completed in the defrost of default setting, directly closes heating
Terminate defrost pattern, so that the cabin defrost for defaulting evaporator is completed.Directly heating defrost will lead in refrigerator compartment in this way
Temperature also rises with it, and influences the fresh-keeping situations such as the freshness of indoor storage food materials, eating mouth feel indirectly, and to some
Special food materials have more strict requirements for temperature fluctuation, if temperature fluctuation is excessively high, can directly shorten the storage week of food materials
Phase is unfavorable for the storage of food materials.
Summary of the invention
To solve the above-mentioned problems, the invention proposes a kind of defrosting control method of refrigerator, the defrosting control methods
It include: to enter Auto-Sensing Mode, and obtain evaporator temperature T0；It sets evaporator temperature T0 described in opening temperature Ta and comparison and opens
Open the size of temperature Ta；Judge that the evaporator temperature T0 is greater than opening temperature Ta, into circulation defrost pattern；Setting circulation time
Number n and the heating defrost for executing n period；The wherein defrost step of signal period are as follows: monitor and obtain freezer temperature T2；Sentence
When the freezer temperature T2 that breaks is less than or equal to minimum threshold temperature Tb, heating defrost is opened；Judge the freezer temperature
When T2 is greater than or equal to maximum threshold temperature Tc, heating defrost is closed.
As a further improvement of the present invention, the step " setting cycle-index n and the heating defrost for executing n period "
Specifically include: setting preset temperature section, each preset temperature section is provided with corresponding cycle-index；Front ring is worked as in acquisition
Border temperature T3 is simultaneously matched to corresponding preset temperature section to obtain corresponding cycle-index n.
As a further improvement of the present invention, the step " sets evaporator temperature T0 described in opening temperature Ta and comparison
With the size of opening temperature Ta " after further include: judge that the evaporator temperature T0 is less than or equal to opening temperature Ta, into single
Defrost pattern.
As a further improvement of the present invention, the step " judge that the evaporator temperature T0 is less than opening temperature Ta, into
Enter single defrost pattern " it specifically includes: heating defrost is opened until the evaporator temperature T0 is greater than opening temperature Ta.
As a further improvement of the present invention, 5 are differed between the maximum threshold temperature Tc and minimum threshold temperature Tb to take the photograph
Family name's degree.
To solve the above-mentioned problems, the invention proposes a kind of refrigerators, including the evaporator for refrigeration and for changing
The heating module of frost, the refrigerator further include: control module, using as described in control method any in claim 1 to 5 control
Heating module enters Auto-Sensing Mode and circulation defrost pattern；First temperature sensor is set on the evaporator for detecting
And the evaporator temperature T0 is fed back to the control module；Second temperature sensor is set in the freezing chamber for examining
It surveys and feeds back the freezer temperature T2 to the control module.
As a further improvement of the present invention, it is kept at least between first temperature sensor and the heating module
The interval of 10cm.
As a further improvement of the present invention, the refrigerator further include: third temperature sensor, for detecting and to described
Control module feeds back the environment temperature T3 around the refrigerator.
Beneficial effects of the present invention: by circulation defrost work in the present invention, the temperature generated when defrost is greatly reduced
Fluctuation, also reduces the time interval of defrost, both ensure that evaporator has good working environment, in turn ensured in refrigerator compartment
The good effect that keeps in cold storage.
Detailed description of the invention
Fig. 1 is the flow diagram of control method of the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
In addition, duplicate label or mark may be used in various embodiments.These are repeated only for simple clear
The ground narration present invention, not representing has any relevance between the different embodiments or structure discussed.
As shown in Figure 1, the invention proposes a kind of refrigerator and for the defrosting control method of refrigerator defrost, specifically,
Refrigerator includes the evaporator for refrigeration and the heating module for defrost, and in the present embodiment, heating module is set as
Heater strip；Meanwhile refrigerator further includes for directly controlling heating module switching working mode and opening and closing heating defrosting function
Control module.
The refrigerator further includes on setting and evaporator for detecting and feeding back the first of evaporator temperature to control module
Temperature sensor；The second temperature sensor for being arranged and freezer temperature being used to detect and fed back to control module in freezing chamber；
And the third temperature sensor for detecting and feeding back to control module the environment temperature around refrigerator.Specifically, this implementation
The first temperature sensor in example is arranged the middle part with evaporator and apart from 10-15 centimetre of heating module, to ensure the temperature detected
Spend the higher judgement to influence control module to temperature.
In conjunction with above-mentioned module and function, defrosting control method proposed by the present invention specifically includes the following steps:
S1, control module control heating module enter Auto-Sensing Mode, and obtain the evaporation that the first temperature sensor detects
Device temperature T0；
S2, setting opening temperature Ta and the size for comparing evaporator temperature T0 Yu opening temperature Ta；
S3, judge evaporator temperature T0 be less than or equal to opening temperature Ta when, control heating module enter single defrost mould
Formula；
Specifically, single defrost pattern are as follows: heating defrost is opened in heating module work until the first temperature sensor is fed back
Evaporator temperature T0 be greater than opening temperature Ta.In general, when refrigerator has the function of quick-frozen or deep cooling and in this function
Down when rigid power cut-off, the temperature around evaporator cabin can be very low at this time, disposably will not evaporation if starting defrost at this time
Frostization on device is net, terminates that many ice can be assembled around finisher rapidly in primary of short duration heating, and if continue
Refrigeration, it will the refrigeration performance of evaporator may be seriously affected repeatedly by continuing frosting；In the present embodiment simultaneously, it opens
Temperature Ta is set as 0 degree Celsius, and the risk to freeze around evaporator is reduced by Auto-Sensing Mode, enhances entire defrosting control
The stability and reliability of process.
S4, judge that the evaporator temperature T0 is greater than opening temperature Ta, into circulation defrost pattern；
S5, setting cycle-index n and the heating defrost for executing n period；Specifically, control module is provided with preset temperature
Section, such as [0 DEG C -10 DEG C], [10 DEG C -25 DEG C], [25 DEG C -32 DEG C], [32 DEG C -43 DEG C], each preset temperature section
It is provided with corresponding cycle-index, after third temperature sensor detects refrigerator current environment temperature T3, feeds back to control
Module is simultaneously matched in corresponding preset temperature section to obtain corresponding cycle-index.
Wherein, the defrost step of signal period are as follows:
A1, enter recycle defrost pattern after, second temperature sensor real-time monitoring freezer temperature T2 is simultaneously fed back
To control module；
When A2, control module judge that freezer temperature T2 is less than or equal to minimum threshold temperature Tb, control heating module is opened
Open heating defrost；
When A3, control module judge that freezer temperature T2 is greater than or equal to maximum threshold temperature Tc, control heating module is closed
Heating defrost is closed, a defrost period is completed.
Further, 5 degrees Celsius are differed between the maximum threshold temperature Tc in the present embodiment and minimum threshold temperature Tb, i.e.,
Tc=Tb+5 DEG C；Due to beginning to warm up defrost when freezer temperature T2 is less than or equal to minimum threshold temperature Tb, until freezing
Room temperature T2 stops heating defrost when being greater than or equal to Tb+5 DEG C, i.e. Tb is the freezing compartment's temperature of defrost at that time, if control
Between room temperature rise less than 5 DEG C, the fluctuation of the surface temperature of the food of corresponding storage can maintain in this way less than 1 DEG C
The fresh-keeping degree of frozen food substantially reduces the temperature fluctuation that refrigerator generates in defrost engineering, and then ensure that storage food
Product it is fresh-keeping.
Sensor signal is fed back to control module processing directly to adjust the defrost work of heating module by the present invention, is passed through
Defrost work is recycled, the temperature fluctuation generated when defrost is greatly reduced, also reduces the time interval of defrost, both ensure that steaming
Hair device has good working environment, in turn ensures the good effect that keeps in cold storage in refrigerator compartment.
Although not each embodiment only includes one only it should be appreciated that this specification is described according to embodiment
Vertical technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should be by specification
As a whole, the technical solutions in the various embodiments may also be suitably combined, formed it will be appreciated by those skilled in the art that
Other embodiments.
The series of detailed descriptions listed above are illustrated only for possible embodiments of the invention,
The protection scope being not intended to limit the invention, it is all without departing from equivalent embodiment made by technical spirit of the present invention or change should all
It is included within protection scope of the present invention.
Claims (8)
1. a kind of defrosting control method of refrigerator, which is characterized in that the defrosting control method includes:
Into Auto-Sensing Mode, and obtain evaporator temperature T0；
Set the size of evaporator temperature T0 and opening temperature Ta described in opening temperature Ta and comparison；
Judge that the evaporator temperature T0 is greater than opening temperature Ta, into circulation defrost pattern；
Setting cycle-index n and the heating defrost for executing n period；
The wherein defrost step of signal period are as follows:
It monitors and obtains freezer temperature T2；
When judging that the freezer temperature T2 is less than or equal to minimum threshold temperature Tb, heating defrost is opened；
When judging that the freezer temperature T2 is greater than or equal to maximum threshold temperature Tc, heating defrost is closed.
2. defrosting control method according to claim 1, which is characterized in that " setting cycle-index n is simultaneously executed the step
The heating defrost in n period " specifically includes:
Preset temperature section is set, and each preset temperature section is provided with corresponding cycle-index；
It obtains current environmental temperature T3 and is matched to corresponding preset temperature section to obtain corresponding cycle-index n.
3. defrosting control method according to claim 1, which is characterized in that " setting opening temperature Ta simultaneously compares the step
After the size of the evaporator temperature T0 and opening temperature Ta " further include:
Judge that the evaporator temperature T0 is less than or equal to opening temperature Ta, into single defrost pattern.
4. defrosting control method according to claim 3, which is characterized in that the step " judges the evaporator temperature
T0 is less than opening temperature Ta, into single defrost pattern " it specifically includes:
Heating defrost is opened until the evaporator temperature T0 is greater than opening temperature Ta.
5. defrosting control method according to claim 1, which is characterized in that the maximum threshold temperature Tc and minimum threshold
5 degrees Celsius are differed between temperature Tb.
6. a kind of refrigerator, including the evaporator for refrigeration and for the heating module of defrost, which is characterized in that the refrigerator
Further include:
Control module enters Auto-Sensing Mode using the heating module as described in control method any in claim 1 to 5 control and follows
Ring defrost pattern；
First temperature sensor is set on the evaporator for detecting and feeding back the evaporator temperature to the control module
Spend T0；
Second temperature sensor is set in the freezing chamber for detecting and feeding back the freezing room temperature to the control module
Spend T2.
7. refrigerator according to claim 6, which is characterized in that between first temperature sensor and the heating module
Keep at least interval of 10cm.
8. refrigerator according to claim 6, which is characterized in that the refrigerator further include:
Third temperature sensor, for detecting and feeding back the environment temperature T3 around the refrigerator to the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625555.XA CN109764609B (en) | 2018-12-28 | 2018-12-28 | Refrigerator and defrosting control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625555.XA CN109764609B (en) | 2018-12-28 | 2018-12-28 | Refrigerator and defrosting control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109764609A true CN109764609A (en) | 2019-05-17 |
| CN109764609B CN109764609B (en) | 2020-12-11 |
Family
ID=66451698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811625555.XA Active CN109764609B (en) | 2018-12-28 | 2018-12-28 | Refrigerator and defrosting control method thereof |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251733A (en) * | 2021-06-02 | 2021-08-13 | 珠海格力电器股份有限公司 | Defrosting control method and device and refrigeration equipment |
| CN113758121A (en) * | 2020-06-05 | 2021-12-07 | 青岛海尔电冰箱有限公司 | Defrosting control method for refrigerator |
| WO2022148089A1 (en) * | 2021-01-08 | 2022-07-14 | 珠海格力电器股份有限公司 | Refrigerator control method and apparatus, and storage medium and refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758121A (en) * | 2020-06-05 | 2021-12-07 | 青岛海尔电冰箱有限公司 | Defrosting control method for refrigerator |
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| Publication number | Publication date |
|---|---|
| CN109764609B (en) | 2020-12-11 |
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Address after: 266101 No. 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant before: Qingdao Haier Joint Stock Co.,Ltd. |
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