CN203704538U - Intelligent defrosting entry point control device for air-cooled refrigerator and air-cooled refrigerator - Google Patents
Intelligent defrosting entry point control device for air-cooled refrigerator and air-cooled refrigerator Download PDFInfo
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- CN203704538U CN203704538U CN201320617722.2U CN201320617722U CN203704538U CN 203704538 U CN203704538 U CN 203704538U CN 201320617722 U CN201320617722 U CN 201320617722U CN 203704538 U CN203704538 U CN 203704538U
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- defrosting
- refrigerating chamber
- temperature
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- defrost
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Abstract
The utility model discloses an intelligent defrosting entry point control device for an air-cooled refrigerator and the air-cooled refrigerator. The control device comprises a defrosting sensor, a refrigerating chamber temperature control sensor and a master controller, wherein the deforesting sensor is arranged at an evaporator; the refrigerating chamber temperature control sensor is arranged at an air outlet of a refrigerating chamber; and the master controller is connected with the defrosting sensor and the refrigerating chamber temperature control sensor. With the adoption of the intelligent defrosting entry point control device for the air-cooled refrigerator, according to temperatures of the evaporator and the air outlet of the refrigerating chamber, defrosting entry points can be determined and controlled accurately, and defrosting can be performed reasonably and timely as required; the energy consumption can be saved, the cost can be reduced, the number of times of use of a defrosting heater can be reduced, and the service life of the defrosting heater is relatively prolonged; and defrosting can be performed timely, and deterioration of stored food caused by excessive rise of temperatures of the refrigerating chamber, a freezing chamber or other chambers can be avoided.
Description
Technical field
The utility model relates to defrosting control field, relates in particular to a kind of wind cooling refrigerator intelligent defrosting point of penetration control device and wind cooling refrigerator.
Background technology
In prior art, automatically controlled wind cooling refrigerator is for the selection of defrost point of penetration, generally all adopt the accumulative total compressor available machine time in conjunction with and carry out programme-control to switch gate number of times in use procedure or the time of opening the door and force defrost.But there are some defects in the system of selection of this defrost point of penetration of the prior art, such as, with respect to really needing defrost, can produce defrost or the defrost phenomenon that seriously lags behind in advance, while not needing defrost, also necessary defrost, seriously postpones the defrost time while needing defrost.While not needing defrost, also defrost meeting increases power consumption, brief heater service life, and for meeting market to low energy consumption product demand, the larger energy consumption that the unnecessary defrost that can increase other cost recovery brings.Not defrost while needing defrost, seriously postpones the defrost time can make the each compartment temperature of refrigerator significantly increase, and causes the food spoilage of refrigerator storage.
For above description, need badly and want a kind of new wind cooling refrigerator intelligent defrosting point of penetration control device and wind cooling refrigerator.
Summary of the invention
The purpose of this utility model is to provide a kind of wind cooling refrigerator intelligent defrosting point of penetration control device, uses this control device, can accurately control defrost point of penetration, as required reasonable, defrost in time.
By this control device, can also save energy consumption, reduce costs, reduce again defrosting heater access times, defrosting heater extends service life relatively.
By this control device, defrost is in time avoided undue rising of refrigerating chamber, refrigerating chamber or other compartment temperature and is caused that stored food is rotten.
The purpose of this utility model is also to provide a kind of wind cooling refrigerator, and wind cooling refrigerator has intelligent defrosting point of penetration control device, can accurately control defrost point of penetration, as required reasonable, defrost in time.
This wind cooling refrigerator can also be saved energy consumption, reduce costs, and reduces again defrosting heater access times, and defrosting heater extends service life relatively.
The defrost in time of this wind cooling refrigerator is avoided undue rising of refrigerating chamber, refrigerating chamber or other compartment temperature and is caused that stored food is rotten.
For reaching this object, the utility model by the following technical solutions:
Intelligent defrosting point of penetration control device for a kind of wind cooling refrigerator, comprising:
Defrosting sensor, it is located at evaporimeter place;
Refrigerating chamber temperature-control senser, it is located at refrigerating chamber air outlet place;
Main controller, it is connected with defrosting sensor and refrigerating chamber temperature-control senser.
As preferably, described defrosting sensor is for gathering the temperature of evaporimeter.
As preferably, described refrigerating chamber temperature-control senser is for gathering the temperature at refrigerating chamber air outlet place.
As preferably, described main controller is used for controlling defrosting sensor and refrigerating chamber temperature-control senser carries out temperature acquisition, and collected temperature is analyzed, and judges whether to carry out defrost.
As preferably, the number of described defrosting sensor is 2, is located at respectively upper end of evaporator, lower end.
As preferably, described main controller respectively with defrosting sensor and refrigerating chamber temperature-control senser wired connection.
As preferably, described main controller respectively with defrosting sensor and the wireless connections of refrigerating chamber temperature-control senser.
A kind of wind cooling refrigerator, it has described intelligent defrosting point of penetration control device.
The beneficial effects of the utility model are: the utility model provides a kind of wind cooling refrigerator intelligent defrosting point of penetration control device and wind cooling refrigerator, due to intelligent defrosting point of penetration control device for described wind cooling refrigerator, comprise: defrosting sensor, it is located at evaporimeter place, for gathering the temperature of evaporimeter; Refrigerating chamber temperature-control senser, it is located at refrigerating chamber air outlet place, for gathering the temperature at refrigerating chamber air outlet place; Main controller, it is connected with defrosting sensor and refrigerating chamber temperature-control senser, for controlling defrosting sensor and refrigerating chamber temperature-control senser carries out temperature acquisition, and collected temperature is analyzed, and judges whether to carry out defrost.So this programme can carry out the judgement of defrost point of penetration according to the temperature at evaporimeter and refrigerating chamber air outlet place, accurately controls defrost point of penetration, reasonable, defrost in time as required; Can also save energy consumption, reduce costs, reduce again defrosting heater access times, defrosting heater extends service life relatively; Defrost is in time avoided undue rising of refrigerating chamber, refrigerating chamber or other compartment temperature and is caused that stored food is rotten.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wind cooling refrigerator that provides of the utility model specific embodiment intelligent defrosting point of penetration control device;
Fig. 2 is the defrost trial curve schematic diagram of wind cooling refrigerator under normal startup-shutdown state in prior art;
Fig. 3 is the defrost trial curve schematic diagram of wind cooling refrigerator under improper startup-shutdown state in prior art;
Fig. 4 is wind cooling refrigerator that the utility model specific embodiment the provides defrost trial curve schematic diagram under startup-shutdown state while searching out defrost point of penetration;
Fig. 5 is the flow chart of the wind cooling refrigerator that provides of the utility model specific embodiment intelligent defrosting point of penetration control method;
Fig. 6 is a kind of optimal way flow chart of the wind cooling refrigerator that provides of the utility model specific embodiment intelligent defrosting point of penetration control method.
Wherein:
10: main controller; 20: defrosting sensor; 30: refrigerating chamber temperature-control senser; 40: refrigerating chamber; 50: evaporimeter;
41: refrigerating chamber air outlet.
The specific embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.
Device embodiment:
Fig. 1 is the structural representation of the wind cooling refrigerator that provides of the utility model specific embodiment intelligent defrosting point of penetration control device.As shown in Figure 1, the intelligent defrosting point of penetration control device of this kind of wind cooling refrigerator comprises: main controller 10, defrosting sensor 20, refrigerating chamber temperature-control senser 30.
Defrosting sensor 20 is located at upper surface or the lower surface place of evaporimeter 50, for gathering the temperature of evaporimeter upper surface or lower surface, and collected temperature value is passed to main controller 10.
Refrigerating chamber temperature-control senser 30 is located at refrigerating chamber air outlet 41 places, for gathering the temperature at refrigerating chamber air outlet 41 places, and collected temperature value is passed to main controller 10.
Main controller 10 is connected with defrosting sensor 20 and refrigerating chamber temperature-control senser 30, be used for controlling defrosting sensor 20 and refrigerating chamber temperature-control senser 30 carries out temperature acquisition, and collected temperature is analyzed, by evaporator surface temperature and refrigerating chamber air outlet temperature changing trend are judged, capture in time defrost demand, judge whether to carry out defrost according to analysis result, if need defrost, start defrost, otherwise, follow collecting temperature and judge.
In the present embodiment, as preferred version, the number of described defrosting sensor is 2, is located at respectively upper end of evaporator face and lower surface place, gathers respectively the temperature at evaporimeter upper surface and lower surface place.The data that this scheme gathers more comprehensively, can make the defrost judgement of main controller 10 more accurate.
In the present embodiment, as preferred version, described main controller 10 respectively with defrosting sensor 20 and refrigerating chamber temperature-control senser 30 wired connections or wireless connections.
Defrost point of penetration control device described in this programme, according to circumstances can use at single, many air cooling refrigerator refrigerating systems, and can use for steel pipe heater, quartz (glass) pipe, aluminum pipe heater.
This programme can reduce the interior leakage problem that refrigerator causes because of corrosion of piping after implementing greatly, improves refrigerator service life, reduces energy consumption, reduces the average use cost of refrigerator.
The utility model also provides a kind of wind cooling refrigerator, and described wind cooling refrigerator has above-described intelligent defrosting point of penetration control device, evaporimeter 50 and refrigerating chamber air outlet 41.Defrosting sensor 20 and refrigerating chamber temperature-control senser 30 that described intelligent defrosting point of penetration control device has main controller 10 and is connected with main controller 10.The defrosting sensor 20 of intelligent defrosting point of penetration control device is located at evaporimeter 50 places of wind cooling refrigerator; The refrigerating chamber temperature-control senser 30 of intelligent defrosting point of penetration control device is located at refrigerating chamber air outlet 41 places of wind cooling refrigerator.
Embodiment of the method:
Fig. 2 is the defrost trial curve schematic diagram of wind cooling refrigerator under normal startup-shutdown state in prior art.As shown in Figure 2, refrigerator is in normal startup-shutdown state, and each startup-shutdown time, each room temperature do not have abnormal variation, there is no defrost demand, but are forced defrost.
Fig. 3 is the defrost trial curve schematic diagram of wind cooling refrigerator under improper startup-shutdown state in prior art.As shown in Figure 3; AB section is normal startup-shutdown; do not need defrost, BC section shows that the available machine time extends gradually, reflects and in evaporator room, has had a lot of frosts; C point starts each compartment temperature and rises gradually; there is defrost demand, but do not receive defrost instruction, until the accumulation available machine time of D point procedure stipulation starts defrost; now each room temperature severe overweight, the food of storage has rotten possibility.
Wind cooling refrigerator defrost point of penetration control method described in this programme adopts a kind of rationally judgment mode, judges in time and defrost for evaporimeter and refrigerating chamber.
Fig. 4 is wind cooling refrigerator that the utility model specific embodiment the provides defrost trial curve schematic diagram under startup-shutdown state while searching out defrost point of penetration.As shown in Figure 4; defrost point of penetration control method described in employing this programme can accurately search out defrost point of penetration; the normal startup-shutdown refrigeration of AB section; the BC section available machine time extends gradually; but now each compartment temperature is also in controlled range; D point occurs that temperature anomaly raises, and provides in time defrost instruction in time by defrosting sensor and the collection of refrigerating chamber temperature-control senser and according to judging, completes defrost process.
Fig. 5 is the flow chart of the wind cooling refrigerator that provides of the utility model specific embodiment intelligent defrosting point of penetration control method.As shown in Figure 5, the intelligent defrosting point of penetration control method of wind cooling refrigerator, comprises the following steps:
S101, main controller control defrosting sensor gather the temperature of evaporimeter, and control the temperature at refrigerating chamber temperature-control senser collection refrigerating chamber air outlet place;
Temperature to collected evaporimeter of S102, main controller and the temperature information at refrigerating chamber air outlet place are analyzed, and judge whether to carry out defrost.
As preferred version, the analytical method that main controller adopts for: the Temperature numerical T (N) collecting for the N time and the mean value T (N-1) of the front Temperature numerical collecting for N-1 time are compared, be greater than preset value △ T if T (N) deducts the difference △ T (N) of T (N-1), judgement starts defrost.Wherein, N value is for being greater than 1 positive integer.
Below in conjunction with Fig. 6, wind cooling refrigerator is described in detail by intelligent defrosting point of penetration control method, Fig. 6 is a kind of optimal way flow chart of the wind cooling refrigerator that provides of the utility model specific embodiment intelligent defrosting point of penetration control method.As shown in Figure 6, the intelligent defrosting point of penetration control method of wind cooling refrigerator comprises step:
S201, freezer compressor start to main controller and send after system normal operation signal, and main controller sends defrost temperature acquisition signal to defrosting sensor and refrigerating chamber temperature-control senser.
Concrete, after the each start of compressor, under open state, main controller is every the uninterrupted temperature that is fixed on evaporation tube surface (or the fixed position of making according to result of the test) defrosting sensor gathering and the refrigerating chamber temperature-control senser that is fixed on the refrigerating chamber air outlet that grace is minimum, air output is minimum and gathers flush distillation device and refrigerating chamber air outlet place of controlling of the first preset time t 1.Wherein, the first preset time t 1 can be several seconds, tens seconds or determine as required.In start process, times of collection is determined as required.
In the present embodiment, as preferred version, described main controller is controlled two defrosting sensors, and two defrosting sensors gather respectively the temperature of evaporimeter upper surface and lower surface.
In the present embodiment, as preferred version, under all compartment door closed conditions, main controller starts to record collecting temperature at compressor booting moment, when shutdown, does not note down.
In the present embodiment, as preferred version, when compressor normally moves, after opening the door, main controller is by image data zero clearing, and all doors are closed rear main controller Resurvey and note down.Under compressor shutdown state, during open and close door, do not keep a record.
In the present embodiment, as preferred version, after power-off again switching on power, main controller is by the temperature data zero clearing gathering and again to temperature data acquisition record.
S202, the Temperature numerical T (N) collecting for the N time and the mean value T (N-1) of the front Temperature numerical collecting for N-1 time are compared, and calculate T (N) and deduct the difference △ T (N) of T (N-1).Wherein, N value is for being greater than 1 positive integer.That is to say; collecting temperature is synchronizeed with compressor booting moment for the first time; for the second time collecting temperature data with make comparisons for the first time; the temperature gathering for the third time and the temperature-averaging value of front twice collection are made comparisons; make comparisons with the mean value of first three time for the 4th time; by that analogy, until compressor shutdown or defrost start, the Temperature numerical at every turn collecting under normal refrigerating state can decline or approximately equal to some extent than mean temperature before.
The size of S203, comparison difference △ T (N) and preset value △ T, if the value that △ is T (N) is greater than preset value △ T, judgement starts defrost; Otherwise, circulation execution step S201.
Along with opening, shut down increased frequency, increasing of switch gate number of times or the time cumulation time of opening the door, between evaporator fin, evaporator room's frost builds up, the cold wind of cycle heat exchange is obstructed, now evaporation tube surface is because the blast of normal circulation heat exchange reduces, cold is difficult for being sent to each chamber by relatively hot cold wind, available machine time can be more and more longer, the frost until be covered with ice between base of evaporator fin, the cold wind of circularly cooling is obstructed completely, now evaporation tube surface temperature sharply declines, the air outlet temperature of refrigerating chamber blast minimum can sharply rise, the temperature now collecting can exceed than the mean temperature of all collections above, main controller sends defrost signal, defrosting heater is started working, complete defrost process.
In the present embodiment, as preferred version, judge whether to need the preset value △ T of defrost to determine according to experimental data.
This programme can carry out the judgement of defrost point of penetration according to the temperature at evaporimeter and refrigerating chamber air outlet place, accurately controls defrost point of penetration, as required reasonable, defrost in time; Can also save energy consumption, reduce costs, reduce again defrosting heater access times, defrosting heater extends service life relatively; Defrost is in time avoided undue rising of refrigerating chamber, refrigerating chamber or other compartment temperature and is caused that stored food is rotten.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (8)
1. an intelligent defrosting point of penetration control device for wind cooling refrigerator, is characterized in that, comprising:
Defrosting sensor (20), it is located at evaporimeter (50) and locates;
Refrigerating chamber temperature-control senser (30), it is located at refrigerating chamber air outlet (41) and locates;
Main controller (10), it is connected with defrosting sensor (20) and refrigerating chamber temperature-control senser (30).
2. intelligent defrosting point of penetration control device for wind cooling refrigerator according to claim 1, is characterized in that, described defrosting sensor (20) is for gathering the temperature of evaporimeter (50).
3. intelligent defrosting point of penetration control device for wind cooling refrigerator according to claim 2, is characterized in that the temperature that described refrigerating chamber temperature-control senser (30) is located for gathering refrigerating chamber air outlet (41).
4. intelligent defrosting point of penetration control device for wind cooling refrigerator according to claim 3, it is characterized in that, described main controller (10) is for controlling defrosting sensor (20) and refrigerating chamber temperature-control senser (30) carries out temperature acquisition, and collected temperature is analyzed, judge whether to carry out defrost.
5. intelligent defrosting point of penetration control device for wind cooling refrigerator according to claim 1, is characterized in that, the number of described defrosting sensor (20) is 2, is located at respectively upper end, the lower end of evaporimeter (50).
6. intelligent defrosting point of penetration control device for wind cooling refrigerator according to claim 1, is characterized in that, described main controller (10) respectively with defrosting sensor (20) and refrigerating chamber temperature-control senser (30) wired connection.
7. intelligent defrosting point of penetration control device for wind cooling refrigerator according to claim 1, is characterized in that, described main controller (10) respectively with defrosting sensor (20) and refrigerating chamber temperature-control senser (30) wireless connections.
8. a wind cooling refrigerator, is characterized in that, has the intelligent defrosting point of penetration control device described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617722.2U CN203704538U (en) | 2013-09-30 | 2013-09-30 | Intelligent defrosting entry point control device for air-cooled refrigerator and air-cooled refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617722.2U CN203704538U (en) | 2013-09-30 | 2013-09-30 | Intelligent defrosting entry point control device for air-cooled refrigerator and air-cooled refrigerator |
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| CN203704538U true CN203704538U (en) | 2014-07-09 |
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| CN201320617722.2U Expired - Fee Related CN203704538U (en) | 2013-09-30 | 2013-09-30 | Intelligent defrosting entry point control device for air-cooled refrigerator and air-cooled refrigerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528340A (en) * | 2013-09-30 | 2014-01-22 | 合肥晶弘电器有限公司 | Air-cooling refrigerator intelligent defrosting entry point control device and method |
| CN109923357A (en) * | 2016-11-10 | 2019-06-21 | Lg电子株式会社 | Refrigerator and its control method |
-
2013
- 2013-09-30 CN CN201320617722.2U patent/CN203704538U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528340A (en) * | 2013-09-30 | 2014-01-22 | 合肥晶弘电器有限公司 | Air-cooling refrigerator intelligent defrosting entry point control device and method |
| CN103528340B (en) * | 2013-09-30 | 2016-07-06 | 合肥晶弘电器有限公司 | The intelligent defrosting point of penetration of a kind of wind cooling refrigerator controls device and control method |
| CN109923357A (en) * | 2016-11-10 | 2019-06-21 | Lg电子株式会社 | Refrigerator and its control method |
| CN109923357B (en) * | 2016-11-10 | 2022-04-01 | Lg电子株式会社 | Refrigerator and control method thereof |
| US11384975B2 (en) | 2016-11-10 | 2022-07-12 | Lg Electronics Inc. | Refrigerator and control method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20160930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |