CN107270633A - A kind of evaporator of refrigerator Defrost method - Google Patents
A kind of evaporator of refrigerator Defrost method Download PDFInfo
- Publication number
- CN107270633A CN107270633A CN201710432182.3A CN201710432182A CN107270633A CN 107270633 A CN107270633 A CN 107270633A CN 201710432182 A CN201710432182 A CN 201710432182A CN 107270633 A CN107270633 A CN 107270633A
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- China
- Prior art keywords
- defrosting
- evaporator
- humidity
- threshold value
- temperature
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/10—Sensors measuring the temperature of the evaporator
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses a kind of evaporator of refrigerator Defrost method, this method gathers evaporator of refrigerator temperature by temperature sensor, evaporator of refrigerator humidity is gathered by humidity sensor, and according to the vaporization chamber humidity and the value of evaporator temperature in current defrosting cycle, to adjust the timing threshold value of heater.This method can combine the concrete condition of refrigerator inside, so as to improve defroster effect, can improve defrosting efficiency according to humidity and temperature conditions dynamic regulation defrosting cycle, be effectively saved electric energy.
Description
Technical field
The invention belongs to refrigerator technical field, more particularly to a kind of Defrost method of refrigerator.
Background technology
In the application of refrigerator, the evaporator for carrying out refrigeration heat exchange, surface temperature is subzero；When in air
When there is steam, it is easy to form solidifying frost attachment on an evaporator.It is as shown in Figure 1 a finned evaporator, works as evaporator
After upper frosting, wind path is blocked, refrigerating efficiency can be had a strong impact on, cause refrigeration for refrigerator effect to be deteriorated, while power consumption increase.
In existing technology, refrigerator is to carry out heating defrosting to evaporator by heater timing, and this significantly increases
Add the power consumption of refrigerator, and effect is not good；For example may be when needing defrosting, timer and the defrosting of not actuated heater；And
Heating is started when need not defrost on the contrary, the waste of electric energy is caused.
As patent application 201310021901.4 discloses a kind of aluminium alloy defrosting device for refrigerator, it is characterised in that including aluminium
Alloy vertical tube, evaporator tube and heating tube, vertical tube both sides are respectively equipped with the C-shaped vertical evaporator tube neck in cross section and added
Heat pipe neck, vertical tube from left to right equidistant arrangement, evaporator tube neck and heating tube neck are located at front side and rear side, evaporation respectively
Device pipe cyclic bending is fastened in each evaporator tube neck, and heating tube cyclic bending is fastened in each heating tube neck, outside vertical tube
Side is provided with sleeve pipe, and sleeve pipe is filled with thermal insulation layer with vertical tube, and riser upper end is connected to an airduct, and airduct is connected with circulating fan, erects
Guide groove of the pipe provided with a bottom angled, vertical tube under shed is towards guide groove and less than edge on guide groove；Melt heating during every
The outside heat radiation of vertical tube is few in the presence of thermosphere, is conducive to improving total refrigerating efficiency.However, this structure type, is still
Heating defrosting is carried out to evaporator by heater timing, not in view of the actual conditions of refrigerator, such as in rainy season,
Easy frosting in refrigerator is, it is necessary to increase the function of defrosting, and in summer hot weather short of rain, weather is relatively dry, in refrigerator
Frost is simultaneously few, then need not excessively start.Start by set date is defrosted, and significantly increases the power consumption of refrigerator, and effect is not good；
For example may be when needing defrosting, timer and the defrosting of not actuated heater；Heating is started on the contrary during without defrosting, and being made
Into the waste of electric energy.
The content of the invention
Based on this, therefore the present invention primary mesh be to provide a kind of evaporator of refrigerator Defrost method, this method can be tied
The concrete condition for closing refrigerator inside is defrosted, and is improved the accuracy of defrosting, is effectively saved electric energy.
Be to provide a kind of evaporator of refrigerator Defrost method another mesh of the present invention, this method can according to humidity and
Temperature conditions dynamic regulation defrosting cycle, so as to improve defroster effect, improves defrosting efficiency, and realizes simplicity, and cost is low
It is honest and clean.
To achieve the above object, the technical scheme is that：
A kind of evaporator of refrigerator Defrost method, this method gathers evaporator of refrigerator temperature by temperature sensor, by wet
Sensor collection evaporator of refrigerator humidity is spent, and according to the vaporization chamber humidity in current defrosting cycle and evaporator temperature
Value, to adjust the timing threshold value of heater.
Further, the average value of the vaporization chamber humidity in current defrosting cycle, and/or evaporator temperature are averaged
Value, to adjust timing threshold value.Generally, vaporization chamber humidity average value is higher, and the humidity for representing vaporization chamber is higher, and evaporator then more holds
Easily solidifying frost, it is therefore desirable to reduce timing threshold value, conversely, should then increase timing threshold value；Or evaporator temperature average value is higher,
The humidity for representing vaporization chamber is higher, evaporator then more easy solidifying frost, it is therefore desirable to reduce timing threshold value, on the contrary then should increase meter
When threshold value.
Specifically, this method realizes that step includes：
Step S1：When entering new defrosting cycle, defrosting controller needs to reset defrosting timer, is counted since 0
When；
Step S2：According to default time interval defrosting controller start by set date humidity sensor measurement vaporization chamber humidity,
And temperature sensor measurement evaporator temperature, and read the measurement data；
Step S3：The history average of humidity and temperature in current defrosting cycle is calculated, and is tabled look-up according to average value, is obtained
Take corresponding defrosting timing threshold value；
Step S4：Judge whether defrosting timer reaches defrosting timing threshold value, removed if then starting heater and beginning to warm up
Frost；Otherwise, step S2 is returned to.
Further, the table in step S4, for the defrosting timing threshold value and humiture table of comparisons, wherein, abscissa is temperature,
4 intervals are divided into from -20 DEG C~0 DEG C；Ordinate is relative humidity, from 0%~100%, is divided into 5 sections, therefore whole seat
Mark plane is divided into 20 block of cells, and each block of cells corresponds to a defrosting timing threshold value, represented with Tij, wherein i represents humidity
Interval, j represents temperature range.
Further, the defrosting timing threshold value in each block of cells, can be obtained by experience, can also pass through reality
Acquisition is tested, or is defined according to being actually needed.
Further, after defrosting timer is reset, defrosting controller sets an initial defrosting timing threshold value, with to ice
The present situation of case carries out judgement defrosting.
The evaporator of refrigerator Defrost method that the present invention is realized, this method can combine the concrete condition of refrigerator inside, can
According to humidity and temperature conditions dynamic regulation defrosting cycle, so as to improve defroster effect, to improve defrosting efficiency, effectively
Save electric energy.
Brief description of the drawings
Fig. 1 is the evaporator application schematic diagram that the present invention is implemented.
Fig. 2 is the hardware structure diagram that the present invention implements defroster.
Fig. 3 is the flow chart that the present invention implements defrosting.
Fig. 4 is that the present invention implements defrosting timing threshold value and the humiture table of comparisons.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It is shown in Figure 1, it is an evaporator 100 with heater.Wherein 101 be the evaporation tube of evaporator, and 103 be wing
Piece, 102 be support；104 be heating controller, and 105 be heating tube.
It is shown in Figure 2, it is the connecting structure for electrical equipment figure of defroster.Wherein defrosting controller 200 includes defrosting timing
Device 201, and defrosting logic unit 202.Humidity sensor 300 detects the air humidity of evaporator, electrical connection defrosting control
Device 200, the detection evaporator own temperature of temperature sensor 301, the defrosting controller 200 of electrical connection.The electricity of heating controller 104
Gas is connected to defrosting controller；Heating tube 105 is electrically connected to heating controller 104.Defrosting timer 201 is responsible for removing one
The time in white cycle carries out timing, and when entering a new defrosting cycle, timer 201 can reset timing.Control logic list
It is first then judged whether according to the value of timing 201 start heater 104 defrosted.The clocking value of timer 201 needs and removed
Default timing threshold value is compared in white logic unit, when clocking value reaches the timing threshold value, and defrosting controller control adds
Heat controller starts heating tube and carries out heating defrosting.
In the prior art, timing threshold value is fixed, or is only influenceed by a small amount of parameter, the number of times of such as refrigerator open,
This causes defrosting cycle to be only to be set according to a small amount of experience, so as to may be defrosted when defrosting is needed without starting
Heater, or Defrost heater is started when need not defrost, cause waste of energy.Practice is found, where evaporator
The air humidity of vaporization chamber, and evaporator self-temperature play very big influence for solidifying frost, therefore in the implementation shown in Fig. 2
In example, vaporization chamber humidity and evaporator temperature are monitored by introducing humidity sensor 300, and temperature sensor 301, and will
In corresponding measurement data (measure at regular intervals once) feeding defrosting controller 200.Defrost logic unit 202 according to
The value of vaporization chamber humidity and evaporator temperature in current defrosting cycle, to adjust timing threshold value.Particularly, according to current defrosting
The average value of vaporization chamber humidity in cycle, and/or evaporator temperature average value, to adjust timing threshold value.Generally, vaporization chamber
Humidity average value is higher, and the humidity for representing vaporization chamber is higher, evaporator then more easy solidifying frost, it is therefore desirable to reduce timing threshold value,
Conversely, should then increase timing threshold value；Or evaporator temperature average value is higher, the humidity for representing vaporization chamber is higher, evaporator
Then more easy solidifying frost, it is therefore desirable to reduce timing threshold value, it is on the contrary then timing threshold value should be increased.
Shown in reference picture 3, Fig. 4, wherein Fig. 3 show defrosting flow.Include following steps：
Step S1：When entering new defrosting cycle, defrosting controller needs to reset defrosting timer, is counted since 0
When；
Step S2：Now defrosting controller will set an initial defrosting timing threshold value, such as T00；
Step S3：Steamed according to default time interval (such as 10 minutes) defrosting controller start by set date humidity sensor measurement
Room humidity, and temperature sensor measurement evaporator temperature are sent out, and reads the measurement data；
Step S4：The history average of humidity and temperature in current defrosting cycle is calculated, and is tabled look-up according to average value, such as
Shown in Fig. 4, for example mean temperature is -14 DEG C, and medial humidity is 55%, then is T21 for defrosting timing threshold value.
Step S5：Judge whether defrosting timer reaches defrosting timing threshold value, removed if then starting heater and beginning to warm up
Frost；Otherwise, step S3 is returned to.
Fig. 4 show defrosting timing threshold value and the humiture table of comparisons, wherein, abscissa is temperature, from -20 DEG C~0 DEG C altogether
It is divided into 4 intervals；Ordinate is relative humidity, from 0%~100%, is divided into 5 sections.Therefore whole coordinate plane is divided into 20
Block of cells, each block of cells represents that wherein i represents humidity interval for a defrosting timing threshold value with Tij, and j represents humidity province
Between.As described above, humidity is bigger, and defrosting cycle is then shorter, thus defrosting timing threshold value it is smaller, therefore from T0j to
T4j, the defrosting timing threshold value of representative is less and less；Meanwhile, temperature is higher, then defrosting cycle is longer, therefore defrosting timing
Threshold value is bigger, therefore from Ti0 to Ti4, the defrosting timing threshold value of representative is increasing.On whole coordinate plane, T40 generations
The defrosting timing threshold value of table is minimum, and the defrosting timing threshold value that T03 is represented is maximum.
The evaporator of refrigerator Defrost method that the present invention is realized, this method can combine the concrete condition of refrigerator inside, can
According to humidity and temperature conditions dynamic regulation defrosting cycle, so as to improve defroster effect, defrosting efficiency is improved, so as to reach
To the purpose more accurately defrosted, the waste of electric energy is reduced.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (5)
1. a kind of evaporator of refrigerator Defrost method, it is characterised in that this method gathers evaporator of refrigerator temperature by temperature sensor
Degree, evaporator of refrigerator humidity is gathered by humidity sensor, and according to the vaporization chamber humidity in current defrosting cycle and evaporation
The value of device temperature, to adjust the timing threshold value of heater.
2. evaporator of refrigerator Defrost method as claimed in claim 1, it is characterised in that this method is according in current defrosting cycle
Vaporization chamber humidity average value, and/or evaporator temperature average value, to adjust timing threshold value.Generally, vaporization chamber humidity is put down
Average is higher, and the humidity for representing vaporization chamber is higher, evaporator then more easy solidifying frost, it is therefore desirable to reduce timing threshold value, conversely, then
Timing threshold value should be increased；Or evaporator temperature average value is higher, the humidity for representing vaporization chamber is higher, and evaporator is then easier
Solidifying frost, it is therefore desirable to reduce timing threshold value, it is on the contrary then timing threshold value should be increased.
3. evaporator of refrigerator Defrost method as claimed in claim 2, it is characterised in that this method realizes that step includes：
Step S1：When entering new defrosting cycle, defrosting controller needs to reset defrosting timer, the timing since 0；
Step S2：According to default time interval defrosting controller start by set date humidity sensor measurement vaporization chamber humidity, and
Temperature sensor measurement evaporator temperature, and read the measurement data；
Step S3：The history average of humidity and temperature in current defrosting cycle is calculated, and is tabled look-up according to average value, acquisition pair
The defrosting timing threshold value answered；
Step S4：Judge whether defrosting timer reaches defrosting timing threshold value, if then starting heater begins to warm up defrosting；It is no
Then, step S2 is returned to.
4. evaporator of refrigerator Defrost method as claimed in claim 3, it is characterised in that the table in step S4, for defrosting timing threshold
Value and the humiture table of comparisons, wherein, abscissa is temperature, and 4 intervals are divided into from -20 DEG C~0 DEG C；Ordinate is relatively wet
Degree, from 0%~100%, is divided into 5 sections, therefore whole coordinate plane is divided into 20 block of cells, and each block of cells corresponds to one
Defrost timing threshold value, is represented with Tij, and wherein i represents humidity interval, and j represents temperature range.
5. evaporator of refrigerator Defrost method as claimed in claim 3, it is characterised in that after defrosting timer is reset, defrosting control
Device processed sets an initial defrosting timing threshold value, to carry out judgement defrosting to the present situation of refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432182.3A CN107270633A (en) | 2017-06-09 | 2017-06-09 | A kind of evaporator of refrigerator Defrost method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432182.3A CN107270633A (en) | 2017-06-09 | 2017-06-09 | A kind of evaporator of refrigerator Defrost method |
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| Publication Number | Publication Date |
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| CN107270633A true CN107270633A (en) | 2017-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710432182.3A Pending CN107270633A (en) | 2017-06-09 | 2017-06-09 | A kind of evaporator of refrigerator Defrost method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440495A (en) * | 2019-08-28 | 2019-11-12 | 长虹美菱股份有限公司 | A kind of refrigerator defrosting control method and device |
| CN113865200A (en) * | 2021-10-08 | 2021-12-31 | 珠海格力电器股份有限公司 | Freezing and refrigerating equipment and control method and computer readable storage medium thereof |
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| CN102478340A (en) * | 2010-11-26 | 2012-05-30 | 泰州乐金电子冷机有限公司 | Anti-dewfall heating device and method |
| CN102679685A (en) * | 2012-05-08 | 2012-09-19 | 河南新飞电器有限公司 | Air-cooled refrigerator and energy-saving defrosting control method thereof |
| CN104748502A (en) * | 2013-12-26 | 2015-07-01 | 东部大宇电子株式会社 | Refrigerator for preventing and/or reducing condensation and method for controlling same |
| CN105004127A (en) * | 2015-07-30 | 2015-10-28 | 青岛海尔股份有限公司 | Refrigerator and defrosting control method thereof |
| CN105674681A (en) * | 2016-01-20 | 2016-06-15 | 青岛海尔股份有限公司 | Air-cooling refrigerator and defrosting control method for evaporator of air-cooling refrigerator |
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- 2017-06-09 CN CN201710432182.3A patent/CN107270633A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793454A (en) * | 2010-03-10 | 2010-08-04 | 合肥美菱股份有限公司 | Intelligent defrosting control method of refrigerator |
| CN102478340A (en) * | 2010-11-26 | 2012-05-30 | 泰州乐金电子冷机有限公司 | Anti-dewfall heating device and method |
| CN102679685A (en) * | 2012-05-08 | 2012-09-19 | 河南新飞电器有限公司 | Air-cooled refrigerator and energy-saving defrosting control method thereof |
| CN104748502A (en) * | 2013-12-26 | 2015-07-01 | 东部大宇电子株式会社 | Refrigerator for preventing and/or reducing condensation and method for controlling same |
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| CN105674681A (en) * | 2016-01-20 | 2016-06-15 | 青岛海尔股份有限公司 | Air-cooling refrigerator and defrosting control method for evaporator of air-cooling refrigerator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440495A (en) * | 2019-08-28 | 2019-11-12 | 长虹美菱股份有限公司 | A kind of refrigerator defrosting control method and device |
| CN110440495B (en) * | 2019-08-28 | 2021-10-01 | 长虹美菱股份有限公司 | Refrigerator defrosting control method and device |
| CN113865200A (en) * | 2021-10-08 | 2021-12-31 | 珠海格力电器股份有限公司 | Freezing and refrigerating equipment and control method and computer readable storage medium thereof |
| CN113865200B (en) * | 2021-10-08 | 2022-08-23 | 珠海格力电器股份有限公司 | Freezing and refrigerating equipment and control method and computer readable storage medium thereof |
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Application publication date: 20171020 |