CN110440495A - A kind of refrigerator defrosting control method and device - Google Patents
A kind of refrigerator defrosting control method and device Download PDFInfo
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- CN110440495A CN110440495A CN201910803004.6A CN201910803004A CN110440495A CN 110440495 A CN110440495 A CN 110440495A CN 201910803004 A CN201910803004 A CN 201910803004A CN 110440495 A CN110440495 A CN 110440495A
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- humidity
- refrigerator
- timing
- compressor
- air inlet
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Classifications
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- 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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- 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
- F25D21/08—Removing frost by electric heating
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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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 refrigerator defrosting control method and devices, are related to refrigerator defrost technical field.The present invention includes controller and the timing unit being electrically connected with controller, comparing unit, detection unit, electric heater；Detection unit includes humidity sensor；Humidity sensor is mounted on refrigerator and is controlled at compartment return air inlet, humidity data at real-time monitoring return air inlet；Detection unit exports humidity data information for receiving the humidity data at controlled compartment return air inlet, and to controller；Set the gradient map relationship at the accumulative operation duration T of compressor and return air inlet of refrigerator defrost trigger condition between humidity value RH.The present invention has more acurrate prediction evaporimeter frosting degree to timely and effectively defrost, and reach energy-saving advantage to detect air humidity at controlled compartment return air inlet as the judgment method of judgment basis.
Description
Technical field
The invention belongs to refrigerator defrost technical fields, more particularly to a kind of refrigerator defrosting control method and device.
Background technique
Frosting can seriously affect the exchange capability of heat of evaporator on evaporator, conventional defrosting control be usually according to it is specific when
Between method reach preset value to control heater defrost, such as according to compressor accumulated running time or opening time, open
Dynamic heater defrost.This defrosting control is not to carry out defrost according to actual frosting situation.Make according to refrigerator is different
With environment, under compressor accumulated running time or the identical situation of opening time, the frosting degree on evaporator can be
Difference, conventional defrosting method will appear frosting it is serious when cannot timely defrost, while should not defrost when starting defrost and waste
Electric energy.
Of the invention a kind of refrigerator defrosting control method and device, to solve in current refrigerator existing for defrost technology not
Foot, will, can more acurrate prediction evaporimeter frosting degree as judgment basis to detect air humidity at controlled compartment return air inlet
To timely and effectively defrost, achieve the purpose that energy-saving.
Summary of the invention
The purpose of the present invention is to provide a kind of refrigerator defrosting control method and devices, by detect controlled compartment return air
Judgment method of the air humidity as judgment basis at mouthful has more acurrate prediction evaporimeter frosting degree to timely and effectively
Defrost, and achieve the purpose that energy-saving, solving existing can not accurately predict evaporimeter frosting degree and timelyization
The problem of frost.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of refrigerator defrosting control method and device, is included the following steps:
Step 1: the compressor of setting refrigerator defrost trigger condition add up at operation duration T and return air inlet humidity value RH it
Between gradient map relationship it is as follows:
As RH > RH1, it is T1 that compressor, which adds up operation duration,；
As RH > RH2, it is T2 that compressor, which adds up operation duration,；
As RH > RH3, it is T3 that compressor, which adds up operation duration,；
When RH is moisture, it is T4 that compressor, which adds up operation duration,；
Wherein RH1>RH2>RH3, T1<T2<T3<T4；
Step 2: being controlled humidity at compartment return air inlet to refrigerator and detect, and obtains humidity value RH in real time；
Step 3: whether detection compressor runs, if so, executing step 4；Otherwise, no operation；
Step 4: judging humidity value RH > RH1, if so, executing step 5, otherwise executes step 6；
Step 5: timing time variable t1, t2, t3, t4 carry out accumulation timing, then execute step 11；
Step 6: judging humidity value RH > RH2, if so, executing step 7, otherwise executes step 8；
Step 7: timing time variable t2, t3, t4 carry out accumulation timing；Then step 11 is executed；
Wherein, timing time variable t1 at this time is without accumulating timing；
Step 8: judging humidity value RH > RH3, if so, executing step 9, otherwise executes step 10；
Step 9: timing time variable t3, t4 carry out accumulation timing；Then step 11 is executed；
Wherein, timing time variable t1, t2 at this time is without accumulating timing；
Step 10: timing time variable t4 carries out accumulation timing；Then step 11 is executed；
Wherein, timing time variable t1, t2, t3 at this time is without accumulating timing；
Step 11: judge that accumulative time variable t1, t2, t3, t4 are closed with the size of T1, T2, T3, T4 of setting respectively
System, works as t1 > T1, t2 > T2, t3 > T3, as long as there is an inequality to set up in this four inequality of t4 > T4, thens follow the steps ten
Two, otherwise, return step three；
Step 12: starting defrost program, press is out of service, and defrosting heater is opened, and starts defrost.
Further, at the end of the defrost in step 12, by the data of described timing time variable t1, t2, t3, t4
It resets, and reenters the step 3.
A kind of refrigerator defrosting control device, including controller and with controller be electrically connected timing unit, compared with list
Member, detection unit, electric heater, compressor；The detection unit and humidity sensor are electrically connected；
The humidity sensor is mounted on refrigerator and is controlled at compartment return air inlet, humidity data at real-time monitoring return air inlet；Institute
Detection unit is stated, exports humidity data information for receiving the humidity data at controlled compartment return air inlet, and to controller；
The timing unit adds up operation duration t1, t2, t3, t4 for compressor under the conditions of real-time timing different humidity；
The comparing unit, for comparing the size of RH Yu preset value RH1, RH2, RH3, be also used to compare t1, t2, t3,
The t4 size with preset value T1, T2, T3, T4 respectively；
The controller by comparing as a result, controller control refrigerator compressor is in the open state and electric heater at
It is in close state in the compressor of closed state or controller control refrigerator and electric heater is in the open state.
Further, the detection unit is also used to: after defrost, being detected again wet at controlled compartment return air inlet
Degree；
The timing unit is also used to: at the end of defrost, the data of described accumulative operation duration t1, t2, t3, t4 are equal
It resets, and restarts timing.
Wherein, the specific explanations of the Partial Feature in a kind of refrigerator defrosting control method of the invention are as follows:
When working as RH > RH1, accumulative growth that described timing time variable t1, t2, t3, t4 are synchronized；
When RH2 < RH≤RH1, accumulative growth that described timing time variable t2, t3, t4 are synchronized；This
When timing time variable t1 increase without accumulative；
When RH3 < RH≤RH2, accumulative growth that described timing time variable t3, t4 are synchronized；At this time
Timing time variable t1, t2 increases without accumulative；
When RH≤RH3, the only described timing time variable t4 carries out accumulative growth；Timing time at this time becomes
T1, t2, t3 is measured to increase without accumulative；That is timing time variable t4 is to add up to increase always, will at the end of defrost
The zeros data of the accumulative operation duration t4, and restart timing.
Knot in general situation, when humidity is higher at refrigerator is controlled compartment return air inlet, on opposite evaporator of refrigerator
White speed is faster, so the accumulative operation duration T of compressor should be shorter, should just enter defrost program, therefore, as RH > RH1
The compressor of time adds up operation duration T1 and is less than the accumulative operation duration T2 of compressor when work as RH > RH2, and so on to obtain the final product,
T1<T2<T3<T4。
Further, the humidity value RHn of multiple gradients can also be set in step one of the invention, (n is integer) is as follows
The compressor of the refrigerator defrost trigger condition adds up the gradient at operation duration T and return air inlet between humidity value RH
Mapping relations are as follows:
As RH > RH1, it is T1 that compressor, which adds up operation duration,；
As RH > RH2, it is T2 that compressor, which adds up operation duration,；
As RH > RH3, it is T3 that compressor, which adds up operation duration,；
As RH > RH4, it is T4 that compressor, which adds up operation duration,；
…
As RH > RHn, it is Tn that compressor, which adds up operation duration,；
Wherein RH1>RH2>RH3>...>RHn, T1<T2<T3<T4<...<Tn.
The humidity value RHn that multiple gradients are set in step one of the invention can be wet in the environment according to used in refrigerator
Variation range is spent, is also possible to be controlled range of humidity variation at compartment return air inlet according to refrigerator, to select a suitable gradient
Section；Wherein, if the cryogenic temperature of indoor setting is different between refrigerator is controlled, also can need to adjust accordingly T1, T2, T3,
The duration of T4 ... Tn；Its specific numerical value, need according under normal circumstances refrigerator local environment humidity or refrigerator it is controlled between
Humidity and relevant test data of experiment at the return air inlet of room are set.
The invention has the following advantages:
The present invention is by working as refrigerator as the judgment method of judgment basis to detect air humidity at controlled compartment return air inlet
When humidity is higher at controlled compartment return air inlet, the frosting velocity on opposite evaporator of refrigerator is faster, returns when refrigerator is controlled compartment
When humidity is lower at air port, the frosting velocity on opposite evaporator of refrigerator is slower, then wet at compartment return air inlet according to being controlled
It is T that compressor under degree and the humidity, which adds up operation duration, to predict the frosting thickness on evaporator of refrigerator, and setting ice
Case defrost trigger condition has more acurrate prediction evaporimeter frosting degree to timely and effectively defrost, and reaches energy saving drop
The purpose of consumption.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of flow chart of refrigerator defrosting control method of the invention；
Fig. 2 is a kind of system block diagram of refrigerator defrosting control device of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " aperture ", "upper", "lower", " thickness ", "top", " in ",
Indicating positions or the positional relationship such as " length ", "inner", " surrounding ", are merely for convenience of description of the present invention and simplification of the description, without
It is that the component of indication or suggestion meaning or element must have a particular orientation, is constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
Refering to Figure 1, the present invention is a kind of refrigerator defrosting control method and device, include the following steps:
Step 1: the compressor of setting refrigerator defrost trigger condition add up at operation duration T and return air inlet humidity value RH it
Between gradient map relationship it is as follows:
As RH > RH1, it is T1 that compressor, which adds up operation duration,；
As RH > RH2, it is T2 that compressor, which adds up operation duration,；
As RH > RH3, it is T3 that compressor, which adds up operation duration,；
When RH is moisture, it is T4 that compressor, which adds up operation duration,；
Wherein RH1>RH2>RH3, T1<T2<T3<T4；
Step 2: being controlled humidity at compartment return air inlet to refrigerator and detect, and obtains humidity value RH in real time；
Step 3: whether detection compressor runs, if so, executing step 4；Otherwise, no operation；
Step 4: judging humidity value RH > RH1, if so, executing step 5, otherwise executes step 6；
Step 5: timing time variable t1, t2, t3, t4 carry out accumulation timing, then execute step 11；
Step 6: judging humidity value RH > RH2, if so, executing step 7, otherwise executes step 8；
Step 7: timing time variable t2, t3, t4 carry out accumulation timing；Then step 11 is executed；
Wherein, timing time variable t1 at this time is without accumulating timing；
Step 8: judging humidity value RH > RH3, if so, executing step 9, otherwise executes step 10；
Step 9: timing time variable t3, t4 carry out accumulation timing；Then step 11 is executed；
Wherein, timing time variable t1, t2 at this time is without accumulating timing；
Step 10: timing time variable t4 carries out accumulation timing；Then step 11 is executed；
Wherein, timing time variable t1, t2, t3 at this time is without accumulating timing；
Step 11: judge that accumulative time variable t1, t2, t3, t4 are closed with the size of T1, T2, T3, T4 of setting respectively
System, works as t1 > T1, t2 > T2, t3 > T3, as long as there is an inequality to set up in this four inequality of t4 > T4, thens follow the steps ten
Two, otherwise, return step three；
Step 12: starting defrost program, press is out of service, and defrosting heater is opened, and starts defrost.
Preferably, at the end of the defrost in step 12, the data of timing time variable t1, t2, t3, t4 are clear
Zero, and three are entered step again.
It please refers to shown in Fig. 2, a kind of refrigerator defrosting control device, including controller and the meter being electrically connected with controller
Shi Danyuan, comparing unit, detection unit, electric heater, compressor；Detection unit and humidity sensor are electrically connected；
Humidity sensor is mounted on refrigerator and is controlled at compartment return air inlet, humidity data at real-time monitoring return air inlet；Detection is single
Member exports humidity data information for receiving the humidity data at controlled compartment return air inlet, and to controller；
Timing unit adds up operation duration t1, t2, t3, t4 for compressor under the conditions of real-time timing different humidity；
Comparing unit is also used to compare t1, t2, t3, t4 points for comparing the size of RH Yu preset value RH1, RH2, RH3
Not with the size of preset value T1, T2, T3, T4；
Controller is by comparing as a result, the compressor of controller control refrigerator is in the open state and electric heater is in and closes
The compressor of closed state or controller control refrigerator is in close state and electric heater is in the open state.
Preferably, detection unit is also used to: after defrost, detecting humidity at controlled compartment return air inlet again；
Timing unit is also used to: at the end of defrost, the data of accumulative operation duration t1, t2, t3, t4 reset, and
Restart timing.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (4)
1. a kind of refrigerator defrosting control method, characterized by the following steps: step 1: setting refrigerator defrost triggers item
The gradient map relationship that the compressor of part adds up at operation duration T and return air inlet between humidity value RH is as follows: as RH > RH1,
It is T1 that compressor, which adds up operation duration,；As RH > RH2, it is T2 that compressor, which adds up operation duration,；As RH > RH3, compressor
Accumulative operation duration is T3；When RH is moisture, it is T4 that compressor, which adds up operation duration,；Wherein RH1 > RH2 > RH3, T1
<T2<T3<T4；Step 2: being controlled humidity at compartment return air inlet to refrigerator and detect, and obtains humidity value RH in real time；Step
Three: whether detection compressor runs, if so, executing step 4；Otherwise, no operation；Step 4: judging humidity value RH > RH1, if
It is to execute step 5, otherwise execute step 6；Step 5: timing time variable t1, t2, t3, t4 carry out accumulation timing, so
After execute step 11；Step 6: judging humidity value RH > RH2, if so, executing step 7, otherwise executes step 8；Step
Seven: timing time variable t2, t3, t4 carry out accumulation timing；Then step 11 is executed；Step 8: judge humidity value RH >
Otherwise RH3 executes step 10 if so, executing step 9；Step 9: timing time variable t3, t4 carry out accumulation timing；So
After execute step 11；Step 10: timing time variable t4 carries out accumulation timing；Then step 11 is executed；Step 10
One: judge accumulative time variable t1, t2, t3, t4 size relation with T1, T2, T3, T4 of setting respectively, works as t1 > T1, t2 >
T2, t3 > T3 then follow the steps 12, otherwise, return step as long as there is an inequality to set up in this four inequality of t4 > T4
Three；Step 12: starting defrost program, press is out of service, and defrosting heater is opened, and starts defrost.
2. a kind of refrigerator defrosting control method according to claim 1, which is characterized in that when the defrost knot in step 12
The data of described timing time variable t1, t2, t3, t4 are reset, and reenter the step 3 by Shu Shi.
3. a kind of refrigerator defrosting control device, which is characterized in that including controller and the timing list being electrically connected with controller
Member, comparing unit, detection unit, electric heater, compressor；The detection unit and humidity sensor are electrically connected；
The humidity sensor is mounted on refrigerator and is controlled at compartment return air inlet, humidity data at real-time monitoring return air inlet；The inspection
Unit is surveyed, exports humidity data information for receiving the humidity data at controlled compartment return air inlet, and to controller；
The timing unit adds up operation duration t1, t2, t3, t4 for compressor under the conditions of real-time timing different humidity；
The comparing unit is also used to compare t1, t2, t3, t4 points for comparing the size of RH Yu preset value RH1, RH2, RH3
Not with the size of preset value T1, T2, T3, T4；
The controller is by comparing as a result, the compressor of controller control refrigerator is in the open state and electric heater is in and closes
The compressor of closed state or controller control refrigerator is in close state and electric heater is in the open state.
4. a kind of refrigerator defrosting control device according to claim 3, which is characterized in that the detection unit is also used to:
After defrost, humidity at controlled compartment return air inlet is detected again；
The timing unit is also used to: at the end of defrost, the data of described accumulative operation duration t1, t2, t3, t4 are clear
Zero, and restart timing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803004.6A CN110440495B (en) | 2019-08-28 | 2019-08-28 | Refrigerator defrosting control method and device |
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|---|---|---|---|
| CN201910803004.6A CN110440495B (en) | 2019-08-28 | 2019-08-28 | Refrigerator defrosting control method and device |
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| CN110440495B CN110440495B (en) | 2021-10-01 |
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Cited By (1)
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| CN113945062A (en) * | 2021-10-14 | 2022-01-18 | 珠海格力电器股份有限公司 | Return air defrosting control method and device and air-cooled refrigerator |
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| CN110440495B (en) | 2021-10-01 |
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