CN1297793C - Automatic qick-freeze refrigerator and its control method - Google Patents
Automatic qick-freeze refrigerator and its control method Download PDFInfo
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- CN1297793C CN1297793C CNB2004100394758A CN200410039475A CN1297793C CN 1297793 C CN1297793 C CN 1297793C CN B2004100394758 A CNB2004100394758 A CN B2004100394758A CN 200410039475 A CN200410039475 A CN 200410039475A CN 1297793 C CN1297793 C CN 1297793C
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- temperature
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- compressor
- refrigerating chamber
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007710 freezing Methods 0.000 claims abstract description 25
- 230000008014 freezing Effects 0.000 claims abstract description 16
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- 238000010257 thawing Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 208000001034 Frostbite Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/30—Quick freezing
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
本发明涉及一种冰箱及其控制方法，具体地说，涉及一种直冷式冰箱及其控制方法，本发明提供了一种在保证成本低、工艺简单、制冷效率高的前提下，实现冷藏室和冷冻室的温度各自保持在所规定的范围温度内的冰箱及其控制方法，其包括冷冻室和冷藏室及其制冷系统和控制电路，其中冷冻室和冷藏室内分别设置温度传感器，控制电路包括主控板、显示器等，冷冻室和冷藏室内的温度传感器均与控制电路中的主控板相连；在冷藏室内设置温度补偿装置，该温度补偿装置与主控板相连，本发明的冰箱，由于在冰箱的冷藏室内设置了温度补偿装置，控制方法也相应做了改动，因此可以实现在保证冷冻室和冷藏室温度在设定范围内实现冰箱的自动速冻和自动除霜功能，而且冷冻速度和冷冻能力都大大地提高了，可达到普通冰箱的两倍以上。
The present invention relates to a refrigerator and its control method, in particular to a direct-cooling refrigerator and its control method. The refrigerator and its control method for keeping the temperature of the room and the freezer within the specified temperature range respectively, which include the freezer room and the refrigerator room and their refrigeration systems and control circuits, wherein the freezer room and the refrigerator room are respectively provided with temperature sensors and control circuits. Including a main control board, a display, etc., the temperature sensors in the freezing chamber and the refrigerating chamber are all connected to the main control board in the control circuit; a temperature compensation device is set in the refrigerating chamber, and the temperature compensation device is connected to the main control board. The refrigerator of the present invention, Since a temperature compensating device is installed in the refrigerating chamber of the refrigerator, and the control method has been changed accordingly, the automatic quick-freezing and automatic defrosting functions of the refrigerator can be realized while ensuring that the temperature of the freezing chamber and refrigerating chamber is within the set range, and the freezing speed And the freezing capacity has been greatly improved, which can reach more than twice that of ordinary refrigerators.
Description
Technical field
The present invention relates to a kind of refrigerator and control method thereof, specifically, relate to a kind of direct cooling refrigerator and control method thereof.
Background technology
Common mechanical type temperature of the prior art control, direct-cooling type household electric refrigerator generally are made up of chamber between two of refrigerating chambers, refrigerating chamber.The single cycle mode is mostly adopted in refrigerating circuit, and promptly the chamber is established evaporimeter respectively between two, and it is connected with compressor, condenser etc. and constitutes refrigerating circuit.The compressor start-stop is by the temperature sensor control that places refrigeration evaporator.The temperature of refrigeration evaporator is higher than when setting turn-on temperature, compressor operating, and the temperature of chamber descends simultaneously between two, and when being lower than the setting shutdown temperature, compressor is out of service, and the temperature of chamber is gone up simultaneously between two.Repeat above-mentioned circulation, the temperature of refrigerating chamber, refrigerating chamber is kept within the specific limits.Adjust the gear of temperature controller, can change refrigerating chamber, freezing indoor temperature.This control mode refrigerator characteristics are: refrigerating chamber, freezer temperature are that for different environment temperatures and heat load, the user can adjust refrigerating chamber, freezer temperature voluntarily according to the needs of oneself in specific environment, particular thermal loading condition coupling.
This control mode, because the temperature controller of refrigerating chamber is not controlled the startup of compressor, when refrigerating chamber is once inserted a large amount of warm article, freezer temperature raises, and refrigerating chamber still remains on the range temperature of defined, compressor can not start, and refrigerating chamber is not lowered the temperature, and is unfavorable for the freezing of food so naturally.For overcoming this defective, on refrigerator, be provided with manual quick-frozen shelves, its opening and closing are by user's manually-operated, because series relationship freezing and refrigeration, if frostbite phenomenons such as refrigerating chamber vegetables, fruit will inevitably appear in the discomfort of adjustment.
Also there is a weakness in this refrigerator: refrigerating capacity is low, and the common food freezing of 3.5Kg that can only make in 24 hours is to the temperature below-18 degrees centigrade.But because of its cost is low, technology is simple, and refrigerating efficiency is higher, still occupies the staple market.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, provide a kind of and guaranteed under the prerequisite that cost is low, technology is simple, refrigerating efficiency is high, realize that the temperature of refrigerating chamber and refrigerating chamber remains on the interior refrigerator and the control method thereof of range temperature of defined separately.
Technical scheme is such on the structure of the present invention: it comprises refrigerating chamber and refrigerating chamber and refrigeration system and control circuit, wherein in refrigerating chamber and the refrigerating chamber temperature sensor is set respectively, control circuit comprises master control borad, display etc., temperature sensor in refrigerating chamber and the refrigerating chamber all links to each other with master control borad in the control circuit, temperature compensation means is set in refrigerating chamber, this temperature compensation means links to each other with master control borad, temperature compensation means has two, one is arranged on evaporimeter top, another is arranged on the refrigerating chamber bottom surface of evaporimeter below, temperature compensation means is that illuminating lamp also can be set to heater strip, temperature compensation means can also be set to the PTC device, perhaps illuminating lamp, heater strip, the PTC device is both any combinations wherein, perhaps three kinds combination.Temperature sensor in the refrigerating chamber comprises evaporator temperature sensor, and it is arranged on the evaporimeter of refrigerating chamber, and the temperature sensor in the refrigerating chamber also comprises the space temperature sensor, and it is arranged on the sidewall of refrigerating chamber.
Its control method is such:
(1) temperature controlling range of setting refrigerating chamber and refrigerating chamber, the open and close compressor temperature of setting refrigerating chamber and refrigerating chamber, the open and close temperature of setting temperature of refrigerating chamber compensation arrangement;
(2) freezer temperature sensor and refrigerator temperature sensor are ceaselessly monitored the temperature of refrigerating chamber and refrigerating chamber;
(3) freezer temperature that monitors when step (2) be not higher than setting open compressor temperature the time, the master control borad program is just according to the parameter open and close compressor of refrigerator temperature sensor, promptly when temperature of refrigerating chamber is higher than or equal turn-on temperature, compressor start, when temperature drops to refrigerating chamber pass compressor temperature, compressor is out of service, and temperature of refrigerating chamber returns step (2) in setting range;
(4) when step (2) monitor freezer temperature be higher than setting open compressor temperature the time, the master control borad program just sends instructions to compressor, drives compressor, when reaching refrigerating chamber pass compressor temperature, master control borad programme-control compressor cuts out, and monitors the temperature in the refrigerating chamber simultaneously;
(5) when step (4) is driven compressor and is in refrigerating state, monitor temperature of refrigerating chamber when not being higher than the turn-on temperature of temperature of refrigerating chamber compensation arrangement, unlatching temperature of refrigerating chamber compensation arrangement compensates the temperature of refrigerating chamber, when reaching temperature of refrigerating chamber compensation arrangement shutoff temperature, it closes the master control borad programme-control, and freezer temperature sensor and refrigerator temperature sensor are proceeded monitoring to the temperature of refrigerating chamber and refrigerating chamber simultaneously;
(6) monitor freezer temperature when reaching refrigerating chamber and closing compressor temperature when step (5), master control borad programme-control close compressor, master control borad program are returned step (2).
Refrigerator of the present invention also has automatic defrosting system, and its step is as follows:
(1) the temperature compensation means time is opened in the continuous energising of setting refrigerator, sets the compressor continuous operation and opens the temperature compensation means time, sets refrigerator evaporator and opens the temperature compensation means temperature range;
(2) master control borad is monitored the parameter of step (1) setting;
(3) when step (2) monitor refrigerator under non-quick-frozen pattern and compressor be in shutdown mode, continuously energising is opened the temperature compensation means defrosting more than setting-up time;
When (4) step (2) stream time that monitors compressor is not shorter than setting-up time, open the temperature compensation means defrosting,
(5) step (4) monitors the refrigerator evaporator temperature sensor and reaches setting range, closes temperature compensation means, and compressor is work as usual.
(6) continuous operation is defrosted to the outage of setting-up time or refrigerator or when entering the quick-frozen pattern in step (3) or (4), the closing temperature compensation arrangement.
Refrigerator of the present invention, owing in the refrigerating chamber of refrigerator, be provided with temperature compensation means, control method is also corresponding changes, therefore can be implemented in assurance refrigerating chamber and temperature of refrigerating chamber are realized refrigerator in setting range automatic quick-frozen and automatic defrosting system, and chilling rate and refrigerating capacity all improved widely, can reach more than the twice of general refrigerator.
Description of drawings
Fig. 1 is a structure chart of the present invention;
Fig. 2 is the schematic diagram of control circuit of the present invention;
Fig. 3 is the operational mode schematic diagram of refrigerating chamber sensor control compressor of the present invention;
Fig. 4 is the working procedure schematic diagram of temperature compensation means of the present invention;
Fig. 5 is a compressor control schematic flow sheet of the present invention.
The specific embodiment
Embodiment 1:
Technical scheme is such on the structure of present embodiment: it comprises refrigerating chamber 5 and refrigerating chamber 2 and refrigeration system and control circuit, wherein in refrigerating chamber 5 and the refrigerating chamber 2 temperature sensor is set respectively, control circuit comprises master control borad, display etc., and the temperature sensor in refrigerating chamber 5 and the refrigerating chamber 2 all links to each other with master control borad in the control circuit; Temperature compensation means is set in refrigerating chamber, this temperature compensation means links to each other with master control borad, temperature compensation means is a heater strip, heater strip is arranged on around the refrigerator evaporator, heater strip has two, one is arranged on evaporimeter top, another is arranged on the refrigerating chamber bottom surface of evaporimeter below, temperature sensor in the refrigerating chamber comprises evaporator temperature sensor 1, it is arranged on the evaporimeter of refrigerating chamber, temperature sensor in the refrigerating chamber also comprises space temperature sensor 3, and it is arranged on the sidewall of refrigerating chamber.
Temperature of refrigerating chamber can be controlled target as required is 5 degrees centigrade; freezer temperature control target is-18 degrees centigrade; according to temperature sensor the placement location of casing different be provided with open, the shutdown temperature point; (freezing: 80L with certain 207L refrigerator; refrigeration: 127L) casing is an example; it is 6.5 degrees centigrade that turn-on temperature is set in refrigeration; the refrigeration shutdown temperature is 5.5 degrees centigrade; freezing turn-on temperature is-13 degrees centigrade; freezing shutdown temperature is-16 degrees centigrade; temperature compensation means is set and opened temperature is 4.5 degrees centigrade, and it is 6 degrees centigrade that temperature compensation means is set closing temperature.The refrigeration system of refrigerator is to mate under 25 degrees celsius in environment temperature usually, and making the refrigerating chamber mean temperature is 5 degrees centigrade, and refrigerating chamber is lower than-18 degrees centigrade.Only controlling compressor with temperature of refrigerating chamber opened, stopped to guarantee that the refrigerating chamber mean temperature is 5 degrees centigrade this moment, and refrigerating chamber is lower than-18 degrees centigrade, and this relies on the refrigerator refrigeration system coupling to reach.Putting into heat load when refrigerating chamber raises temperature of refrigerating chamber, when being higher than refrigeration and setting 6.5 degrees centigrade of turn-on temperatures, refrigerator temperature sensor just passes to master control borad with this information, master control borad will send instructions to compressor, the compressor start, cold good room temperature descends, reach refrigeration shutdown temperature 5.5 when spending, refrigerating chamber space temperature sensor passes to master control borad with information again, master control borad sends instructions to compressor, compressor shutdown makes temperature of refrigerating chamber drop to setting range by prolonging the available machine time, and refrigerating chamber is along with the prolongation temperature of available machine time also can reduce; When refrigerating chamber is put into heat load when making freezer temperature be increased to refrigerating chamber turn-on temperature-13 degree centigrade; freezer temperature sensor also is delivered to master control borad with this information; master control borad sends instructions to compressor; the compressor start is freezed simultaneously to refrigerating chamber and refrigerating chamber; refrigerating chamber reaches when setting refrigerating chamber shutdown temperature-16 degree centigrade; master control borad can be controlled compressor shutdown; make freezer temperature drop to setting range by the prolongation available machine time like this, refrigerating chamber is along with the prolongation temperature of available machine time also can reduce.In the process of refrigerating chamber control compressor cooling; master control borad is also ceaselessly monitored the space temperature of refrigerating chamber; when being reduced to, temperature of refrigerating chamber sets the refrigerating chamber shutdown temperature below 5.5 degrees centigrade; when reaching the temperature of refrigerating chamber compensation arrangement and opening 4.5 degrees centigrade of temperature; master control borad will be controlled unlatching temperature of refrigerating chamber compensation arrangement is compensated temperature of refrigerating chamber; when temperature of refrigerating chamber reaches 6 degrees centigrade of temperature of refrigerating chamber compensation arrangement shutoff temperatures, the closing cold room temperature compensation means.The temperature of refrigerating chamber compensation arrangement is opened temperature to be set in below the refrigerating chamber shutoff temperature and can to reduce power consumption.
The unlatching of temperature of refrigerating chamber compensation arrangement is at refrigerating chamber or under the prerequisite that refrigerator evaporator requires to start shooting, and the temperature of refrigerating chamber compensation arrangement can not opened if refrigerating chamber and refrigerator evaporator require to start shooting.
Refrigerator of the present invention also has automatic defrosting system, the time that can set continuous energising unlatching temperature compensation means is 6 hours, the refrigerator evaporator temperature sensor was also monitored the temperature of refrigerator evaporator when master control borad was monitored refrigerating chamber and refrigerating chamber space temperature, when refrigerator under non-quick-frozen pattern and compressor be in shutdown mode, continuously energising is more than 6 hours the time, the defrosting of unlatching temperature compensation means, the refrigerator evaporator temperature sensor reaches setting range, close temperature compensation means, compressor is work as usual; When the continuous operation that monitors compressor is more than 2 hours, open the temperature compensation means defrosting, the temperature compensation means of present embodiment bottom is arranged on the discharge outlet place of refrigerating chamber bottom, and the water in the defrost process can be in the frosting again of the bottom of refrigerating chamber like this.
When the refrigerator temperature sensor temperature was not less than 5 degrees centigrade, the defrost time was during greater than 2.5 hours, refrigerator outage or when entering the quick-frozen pattern, master control borad is the closing temperature compensation arrangement at once.
This control mode can obtain the refrigerating capacity bigger than the standard machinery temperature control refrigerator, brings up to 7.5Kg with the refrigerating capacity of the standard machinery temperature control refrigerator of this kind temperature control mode transformation by 3.5Kg through experiment.
Can set different temperature control points to enrich the scope of application of refrigerator.
Substitute temperature of refrigerating chamber with the refrigerator evaporator temperature, only need the change temperature control parameter not need to change control law.
As shown in Figure 3, refrigerator of the present invention is such by the programme-control flow process of refrigerator temperature sensor control compressor start-stop, after entering the setting pattern, if master control borad detect temperature of refrigerating chamber be higher than setting open compressor temperature the time, master control borad returns main program after just putting out the simultaneously clear refrigerating chamber starting logo of compressor sign; If temperature of refrigerating chamber be not higher than setting open compressor temperature the time, master control borad just detects the temperature of refrigerating chamber, if freezer temperature is higher than the compressor temperature of opening of setting, it is just controlled to put out and returns main program after the compressor sign is put the refrigerating chamber starting logo simultaneously, if the temperature of refrigerating chamber is lower than the setting shutdown temperature, detect temperature of refrigerating chamber, if temperature of refrigerating chamber is lower than the setting shutdown temperature, master control borad judges whether refrigerating chamber requirement start, just puts the compressor shutdown sign if refrigerating chamber requires start and freezer temperature to be higher than the setting shutdown temperature; Require to shut down if not refrigerating chamber, put and shut down sign, return main program.
As shown in Figure 4, the working procedure of temperature of refrigerating chamber in refrigerator compensation arrangement of the present invention is such, and master control borad at first judges whether refrigerating chamber requirement start, if not just disconnecting the temperature of refrigerating chamber compensation arrangement; If refrigerating chamber requires start, and the refrigerating chamber space temperature is not less than the temperature of driving the temperature of refrigerating chamber compensation arrangement of setting, master control borad is opened the temperature of refrigerating chamber compensation arrangement with regard to programme-control, judge simultaneously whether temperature of refrigerating chamber is higher than the pass temperature of refrigerating chamber compensation arrangement temperature of setting, if height then temperature of refrigerating chamber compensation arrangement disconnect, if not high then continue main program; If that judges that temperature of refrigerating chamber is not less than setting opens temperature of refrigerating chamber compensation arrangement temperature, main program just judges whether the refrigerating chamber space temperature is higher than the pass temperature of refrigerating chamber compensation arrangement temperature of setting, if height then temperature of refrigerating chamber compensation arrangement are closed, if the not high main program that returns.
As shown in Figure 5; the working procedure of compressor of the present invention is such; master control borad judges whether the refrigerating chamber forced stoppage; if then put the compressor shutdown sign; if not then judging whether compressor time-delay power-on protection; if then put the compressor shutdown sign; if not just judging whether the continuous operating time protection; if just put the compressor shutdown sign; if not just having judged whether the compressor starting logo,, continue to have judged whether to shut down sign if then drive compressor; if have then close compressor, if just do not return main program.
Embodiment 2:
This enforcement is that with the difference of embodiment 1 temperature compensation means is the PTC device, and it is positioned at around the evaporimeter; Temperature sensor in the refrigerating chamber is set to one, and it is positioned on the refrigerator evaporator, and according to the operation of the control of the temperature around evaporimeter refrigerator, its control mode is with embodiment 1.
Embodiment 3:
The difference of present embodiment and embodiment 1 is, temperature compensation means is set to the combination of illuminating lamp, heater strip and PTC device, heater strip is arranged on above the evaporimeter, the PTC device is arranged on the refrigerating chamber bottom surface below the evaporimeter, the temperature sensor of refrigerating chamber is set to two, be refrigerator evaporator sensor and space temperature sensor, the operation of its acting in conjunction control refrigerator, its control mode is with embodiment 1.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100394758A CN1297793C (en) | 2004-02-16 | 2004-02-16 | Automatic qick-freeze refrigerator and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100394758A CN1297793C (en) | 2004-02-16 | 2004-02-16 | Automatic qick-freeze refrigerator and its control method |
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| CN1560548A CN1560548A (en) | 2005-01-05 |
| CN1297793C true CN1297793C (en) | 2007-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100394758A Expired - Fee Related CN1297793C (en) | 2004-02-16 | 2004-02-16 | Automatic qick-freeze refrigerator and its control method |
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| CN101943510A (en) * | 2010-08-12 | 2011-01-12 | 合肥晶弘电器有限公司 | Electronic defrosting system having refrigerating chamber stopping function |
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| CN1560548A (en) | 2005-01-05 |
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