CN102865717B - Refrigerator and energy-saving fresh-keeping device thereof - Google Patents
Refrigerator and energy-saving fresh-keeping device thereof Download PDFInfo
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- CN102865717B CN102865717B CN201210390835.3A CN201210390835A CN102865717B CN 102865717 B CN102865717 B CN 102865717B CN 201210390835 A CN201210390835 A CN 201210390835A CN 102865717 B CN102865717 B CN 102865717B
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Abstract
The invention provides a kind of refrigerator and energy-saving fresh-keeping device thereof, this energy-saving fresh-keeping device comprises: environment temperature sensor, for detecting the temperature of refrigerator surrounding environment; Evaporator temperature sensor, for detecting the temperature of the evaporimeter of refrigerator; Low temp compensating heater strip, for compensating heating when refrigerator environment temperature is low; Micro-control unit, be connected with environment temperature sensor, evaporator temperature sensor, low temp compensating heater strip, heat for the temperature in refrigerator surrounding environment lower than automatically controlling low temp compensating heater strip during first setting value and stop heating in the temperature of refrigerator surrounding environment higher than automatically controlling low temp compensating heater strip during second setting value, controlling the operation of freezer compressor simultaneously according to the detected value of evaporator temperature sensor; Power circuit, is connected with micro-control unit, for supplying operating current to micro-control unit.The present invention can solve the problems such as the refrigerator freezing refrigeration of traditional mechanical refrigerator is poor or power consumption is large.
Description
Technical field
The present invention relates to a kind of refrigerating plant, particularly relate to a kind of refrigerator and energy-saving fresh-keeping device thereof.
Background technology
As the critical piece of refrigerator, the start-stop of traditional mechanical type freezer compressor depends on the switch of temperature controller, and temperature controller, with temperature-sensitive head, can be switched on or switched off temperature controller according to the temperature of temperature-sensitive head.Low temp compensating heater strip, by switch control rule, has two kinds of control modes at present: one is mechanical type low temp compensating switch, needs user oneself to operate; Another is magnet-sensitive switch, the change of environmentally temperature automatically can be switched on or switched off heater strip, but have certain error.
Application shows, the control model of traditional mechanical refrigerator has following shortcoming:
User buys back refrigerator usually with regard to inoperation, but, along with the change of seasonal variations, environment temperature, the gear of temperature controller needs user to adjust at any time, otherwise summer gear can be caused excessively strong, and compressor works long hours, even do not shut down, power consumption is large, the frosting of refrigerating chamber back; Or winter, gear was excessively weak, and the compressor available machine time is short, affects refrigeration, even caused refrigerating chamber to thaw.
Low temp compensating heater strip can not effectively switch will cause freezing refrigeration difference or refrigerator power consumption large, reason one, if the low temp compensating heater strip of refrigerator mechanical low-temperature compensating switch controls, user many times forgets in connection in winter, disconnection in summer, result be winter freezing refrigeration poor, summer causes power consumption very large owing to still connecting heater strip.Reason two, if the low temp compensating heater strip of refrigerator controls with magnet-sensitive switch, although do not need user operable switch, but because this magnet-sensitive switch exists error, can not accurately control, or can cause---when ring temperature is on the low side, access failure heater strip causes freezing refrigeration poor, does not disconnect the power consumption of heater strip result large when ring temperature is higher.
Visible, traditional mechanical refrigerator also exists the shortcomings such as operation is not humane, refrigerating effect is poor or energy consumption is high.
Summary of the invention
The object of the present invention is to provide a kind of refrigerator and energy-saving fresh-keeping device thereof, cannot Based Intelligent Control, refrigerating effect difference or the problem such as energy consumption is high with what solve that prior art exists.
In order to solve the problem, on the one hand, the invention provides a kind of energy-saving fresh-keeping device, comprising:
Environment temperature sensor, for detecting the temperature of refrigerator surrounding environment;
Evaporator temperature sensor, for detecting the temperature of the evaporimeter of refrigerator;
Low temp compensating heater strip, for compensating heating when refrigerator environment temperature is low;
Micro-control unit, be connected with described environment temperature sensor, described evaporator temperature sensor, described low temp compensating heater strip, heat for the temperature in refrigerator surrounding environment lower than automatically controlling described low temp compensating heater strip during first setting value and stop heating in the temperature of refrigerator surrounding environment higher than automatically controlling described low temp compensating heater strip during second setting value, controlling the operation of freezer compressor simultaneously according to the detected value of evaporator temperature sensor;
Power circuit, is connected with described micro-control unit, for supplying operating current to described micro-control unit.
In a preferred embodiment of above-mentioned energy-saving fresh-keeping device, also comprise two signal acquisition circuits, described environment temperature sensor, described evaporator temperature sensor is connected with described micro-control unit respectively by signal acquisition circuit described in, described in one, signal acquisition circuit comprises: one end of one first resistance is connected to one end of one second resistance, the other end of described second resistance is connected to one end of one first electric capacity, the other end of described first electric capacity is connected to ground, the output of described environment temperature sensor or described evaporator temperature sensor is connected to the node of described first resistance and described second resistance, described micro-control unit is connected to the node of described second resistance and described first electric capacity.
In a preferred embodiment of above-mentioned energy-saving fresh-keeping device, described power circuit comprises the rectified current, mu balanced circuit and the 50Hz testing circuit that connect successively.
In a preferred embodiment of above-mentioned energy-saving fresh-keeping device, described rectified current comprises:
The negative electrode of one first diode is connected to the negative electrode of one first Zener diode, the positive pole of one first polar capacitor, the anode of described first diode is connected to one end of one the 3rd resistance, the negative electrode of one second diode, the other end of described 3rd resistance is connected to one end of one second electric capacity, the anode of described second diode is connected to the negative electrode of one the 3rd diode, and the anode of described 3rd diode is connected to the anode of described first Zener diode and the negative pole of described first polar capacitor.
In a preferred embodiment of above-mentioned energy-saving fresh-keeping device, described mu balanced circuit comprises:
One end of one the 3rd electric capacity is connected to the negative electrode of one second Zener diode, one end of one the 4th electric capacity, the positive pole of one second polar capacitor, the other end of described 3rd electric capacity is connected to one end of one the 4th resistance and the colelctor electrode of one first PNP type triode, the other end of described 4th resistance is connected to the anode of described second Zener diode, the base stage of described first PNP type triode, and the emitter stage of described first PNP type triode, the other end of described 4th electric capacity, the negative pole of described second polar capacitor are connected to ground.
In a preferred embodiment of above-mentioned energy-saving fresh-keeping device, described 50Hz testing circuit comprises:
One end of one the 5th resistance is connected to one the 5th electric capacity, the emitter stage of one second PNP type triode, the other end of described 5th resistance is connected to one end of one the 6th resistance, the other end of described 5th electric capacity and the base stage of described second PNP type triode, the other end of described 6th resistance is the input of described 50Hz testing circuit, the colelctor electrode of described second PNP type triode is connected to one end of one the 7th resistance, one end of one the 8th resistance, the other end of described 8th resistance be connected to one the 7th electric capacity one end and as the output of described 50Hz testing circuit, the other end of described 7th resistance, the other end of described 7th electric capacity is connected to ground.
In a preferred embodiment of above-mentioned energy-saving fresh-keeping device, also comprise the silicon controlled control circuit that two instructions according to described micro-control unit control power supply conducting disconnection, described micro-control unit is connected respectively by the compressor of silicon controlled control circuit described in described low temperature supplementary heating silk, refrigerator.
In a preferred embodiment of above-mentioned energy-saving fresh-keeping device, described silicon controlled control circuit comprises:
One end of one the 9th resistance is the input of described silicon controlled control circuit, the other end of described 9th resistance is connected to the base stage of a NPN type triode, the colelctor electrode of described NPN type triode is connected to one end of 1 the tenth resistance, the emitter stage of described NPN type triode is connected to ground, and the other end of described tenth resistance is connected to a silicon controlled gate pole.
In a preferred embodiment of above-mentioned energy-saving fresh-keeping device, described environment temperature sensor, described evaporator temperature sensor are NTC thermistor.
In order to solve the problem, on the other hand, the invention provides a kind of refrigerator, comprise control system and compressor, wherein, described control system comprises above-mentioned arbitrary energy-saving fresh-keeping device, and micro-control unit and the described compressor of described energy-saving fresh-keeping device couple.
The present invention varies with temperature, automatically temperature-compensating heater strip is switched on or switched off, the temperature of micro-control unit environmentally temperature sensor, evaporator temperature sensor collection judges, temperature control is very accurate, thus solution user forgets the problem that refrigerator freezing refrigeration is poor or power consumption is large that switch low temp compensating switch or magnet-sensitive switch temperature range error cause.Therefore, the present invention can when seasonal variations, the change of ring temperature, the automatically temperature of adjustment refrigerator, solves that user forgets regulation stall and the freezing refrigeration in winter that causes is poor, the time started in summer is grown, do not shut down, refrigerates the problems such as frosting, power consumption are large.Namely the present invention can solve user and cannot carry out effectively arranging making it to be operated in optimum state to traditional mechanical refrigerator, thus causes refrigerator freezing to freeze difference or the problem such as power consumption is large.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram of energy-saving fresh-keeping device preferred embodiment of the present invention;
Fig. 2 is the structural representation of the signal acquisition circuit of energy-saving fresh-keeping device preferred embodiment of the present invention;
Fig. 3 is the power circuit of energy-saving fresh-keeping device preferred embodiment of the present invention, the structural representation of silicon controlled control circuit.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Fig. 1 schematically illustrates the theory structure of the preferred embodiment of the present invention, Fig. 2 then shows the partial detailed structure of the preferred embodiment of the present invention, as shown in the figure, illustrated energy-saving fresh-keeping device preferred embodiment (hereinafter referred to as this preferred embodiment) controls the refrigerator switching on and shutting down time for automatic environmentally temperature, and it mainly comprises micro-control unit 1, evaporator temperature sensor 21, environment temperature sensor 22, low temp compensating heater strip 3.Wherein micro-control unit 1 is connected with power supply LN by power circuit 11, is connected respectively by two silicon controlled control circuits 12 with low temp compensating heating wire 3 and compressor m, is connected with evaporator temperature sensor 21 and environment temperature sensor 22 respectively by two signal acquisition circuits 13.Wherein, evaporator temperature sensor 21, environment temperature sensor 22 are preferably NTC (NegativeTemperatureCoeffiCient, negative temperature coefficient) thermistor.Environment temperature sensor 22 is for detecting the temperature of refrigerator surrounding environment; Evaporator temperature sensor 21 is for detecting the temperature of the evaporimeter of refrigerator; Low temp compensating heater strip 3 is for compensating heating when refrigerator environment temperature is low; Micro-control unit 1 heats for the temperature in refrigerator surrounding environment lower than automatically controlling low temp compensating heater strip during first setting value and stops heating in the temperature of refrigerator surrounding environment higher than automatically controlling low temp compensating heater strip 3 during second setting value, control the operation of freezer compressor m according to the detected value of evaporator temperature sensor 21 simultaneously, wherein the first setting value can be equal with the second setting value, also can be close.Power circuit 11 is connected with micro-control unit 1, supplies operating current for needing active device to micro-control unit 1 etc.
For example, user controls an adjusting device, such as a potentiometer, be arranged on artificial intelligence gear, the resistance of potentiometer changes, after micro-control unit 1 detects the change of this magnitude of voltage, namely be judged as wanting automatically the change of environmentally temperature automatically to adjust strong and weak gear, enter operational mode.
When the temperature that evaporator temperature sensor 21 is experienced reaches turn-on temperature, namely certain resistance is reached, certain magnitude of voltage is obtained by signal acquisition circuit 13, when micro-control unit 1 detects this voltage, namely think and reach turn-on temperature, then drive silicon controlled control circuit conducting, thus compressor m is accessed electric power loop, also be namely connected with power supply LN, compressor m starts working; Otherwise, when the temperature that evaporator temperature sensor 21 is experienced reaches shutoff temperature, namely certain resistance is reached, certain magnitude of voltage is obtained by signal acquisition circuit 13, when micro-control unit 1 detects this voltage, namely think and reach shutoff temperature, then drive silicon controlled control circuit 12 to turn off, thus compressor m is disconnected from electric power loop, compressor m quits work.
Winter conditions temperature reduces, change in resistance corresponding for variations in temperature can be fed back to micro-control unit 1 by environment temperature sensor 22 in time, signal acquisition circuit 13 just obtains the voltage after changing, after the voltage detected when micro-control unit 1 reaches setting value, namely think and need to connect low temp compensating heater strip 3, at this moment micro-control unit 1 drives silicon controlled control circuit 12 conducting, low temp compensating heater strip 3 is accessed electric power loop, compensates heating.Otherwise, winter gave place to spring, environment temperature is slowly gone up, environment temperature sensor 22 can feed back to micro-control unit 1 by change in resistance corresponding for variations in temperature in time, and signal acquisition circuit 13 just obtains the voltage after change, after the voltage detected when micro-control unit 1 reaches setting value, namely not think and need heated, at this moment micro-control unit 1 drives silicon controlled control circuit 12 to disconnect, thus is disconnected with power supply LN by low temp compensating heater strip 3, stops heating.
In addition, this preferred embodiment also comprises illuminating lamp 41 and lamp switch 42, and the two is the illuminating lamp used in refrigerator, and enabling lamp is bright, pass gate light goes out.Illuminating lamp 41 and lamp switch 42 are connected in power circuit together, and lamp switch 42 is normally closed switch, namely not by being in closed (conducting) state during external force, disconnect when applying external force.When usual refrigerator closes door state, apply external force to lamp switch 42, lamp switch 42 disconnects, and illuminating lamp 41 does not work; Will discharge when user opens the door and apply external force to this lamp switch 42, lamp switch 42 returns to normal and closes (conducting), and at this moment illuminating lamp 41 accesses electric power loop and lights.
As shown in Figure 2, signal acquisition circuit 13 comprises: one end of the first resistance R1 is connected to one end of the second resistance R2, the other end of the second resistance R2 is connected to one end of the first electric capacity C1, the other end of the first electric capacity C1 is connected to ground, the output of environment temperature sensor 22, evaporator temperature sensor 21 is connected to the node of the first resistance R1 and the second resistance R2, and micro-control unit 1 is connected to the node of the second resistance R2 and the first electric capacity C1.
First resistance R1 provides the biased of each temperature sensor, and the second resistance R2 and the first electric capacity C1 forms low pass filter, eliminates High-frequency Interference, and plays the port effect of protection micro-control unit 1.
As shown in Figure 3, L represents the live wire of power supply, and N represents the zero line of power supply, and power circuit 11 comprises the rectification circuit 111, mu balanced circuit 112 and the 50Hz testing circuit 113 that connect successively.The core of circuit shown in Fig. 3 is the common point of structure forceful electric power and vulnerabilities scan, the forceful electric power of controllable silicon TR1, weak control circuit is associated.Silicon controlled TR1 control end is the+5V of light current, and be again the L end of forceful electric power, be the common point of forceful electric power and vulnerabilities scan simultaneously.
Wherein, rectification circuit 111 comprises: the negative electrode of the first diode D1 is connected to the positive pole of the negative electrode of the first Zener diode ZD1, the first polar capacitor E1, the anode of the first diode D1 is connected to one end of the 3rd resistance R3, the negative electrode of the second diode D2, the other end of the 3rd resistance R3 is connected to one end of the second electric capacity C2, the anode of the second diode D2 is connected to the negative electrode of the 3rd diode D3, and the anode of the 3rd diode D3 is connected to the anode of the first Zener diode ZD1 and the negative pole of the first polar capacitor E1.
The node of the anode of the second diode D2 and the negative electrode of the 3rd diode D3 is also drawn a holding wire IN and is inputted 50Hz testing circuit.
Can set the second electric capacity C2=1uF, 50Hz AC impedance is 3K about Ω, can provide the electric current of maximum 50mA for late-class circuit.
When live wire L voltage drops to minimum of a value from maximum, electric current flows back to live wire L from zero line N through the second electric capacity C2, the 3rd resistance R3, the first diode D1.
When live wire L voltage rises to maximum from minimum of a value, electric current flows back to zero line N from live wire L through the first Zener diode ZD1, the first polar capacitor E1, the 3rd diode D3, the second diode D2, the 3rd resistance R3, the second electric capacity C2, charges to the first polar capacitor E1; On first polar capacitor E1 polarity of voltage be upper just, lower negative; On first polar capacitor E1, voltage max is determined by the first Zener diode ZD1.
The electric charge that first polar capacitor E1 stores in an ac cycle, need meet late-class circuit requirements of one's work in the whole 50HZ cycle, ensures+5V the voltage of mu balanced circuit energy stable output.
Mu balanced circuit 112 comprises: one end of the 3rd electric capacity C3 is connected to the negative electrode of the second Zener diode ZD2, one end of the 4th electric capacity C4, the positive pole of the second polar capacitor E2, the other end of the 3rd electric capacity C3 is connected to one end of the 4th resistance R4 and the colelctor electrode of the first PNP type triode P1, the other end of the 4th resistance R4 is connected to the anode of the second Zener diode ZD2, the base stage of the first PNP type triode P1, and the negative pole of the emitter stage of the first PNP type triode P1, the other end of the 4th electric capacity C4, the second polar capacitor E2 is connected to ground.
Mu balanced circuit 112 is simple diode mu balanced circuit, and the first PNP type triode P1, as current amplifier, can provide the electric current of 50mA to export.
50Hz testing circuit 113 comprises: one end of the 5th resistance R5 is connected to the 5th electric capacity C5, the emitter stage of the second PNP type triode P2, the other end of the 5th resistance R5 is connected to one end of the 6th resistance R6, the other end of the 5th electric capacity C5 and the base stage of the second PNP type triode P2, the other end of the 6th resistance R6 is the input of 50Hz testing circuit 112, the colelctor electrode of the second PNP type triode P2 is connected to one end of the 7th resistance R7, one end of 8th resistance R8, the other end of the 8th resistance R8 be connected to the 7th electric capacity C7 one end and as the output of 50Hz testing circuit 112, the other end of the 7th resistance R7, the other end of the 7th electric capacity C7 is connected to ground.
The negative trapezoidal wave signal that the amplitude that holding wire IN transmits is 12V by 50Hz testing circuit 112 oppositely amplifies, be shaped as the negative square-wave signal of amplitude 5V, exports, output to the pin of micro-control unit 1 via holding wire OUT.
Fig. 3 also show the circuit diagram of silicon controlled control circuit 12, silicon controlled control circuit 12 disconnects for controlling power supply conducting according to the instruction of micro-control unit 1, and micro-control unit 1 is connected respectively by the compressor m of a silicon controlled control circuit 12 with low temperature supplementary heating silk 3, refrigerator.
Silicon controlled control circuit 12 comprises: one end COMP of the 9th resistance R9 is the input of silicon controlled control circuit 12, for being connected with micro-control unit 1, the other end of the 9th resistance R9 is connected to the base stage of NPN type triode N1, the colelctor electrode of NPN type triode N1 is connected to one end of the tenth resistance R10, the emitter stage of NPN type triode N1 is connected to ground, the other end of the tenth resistance R10 is connected to the gate pole of controllable silicon TR1, and the negative electrode of controllable silicon TR1, anode are connected to live wire L, compressor m.
When the control end of compressor m, one end COMP of the 9th resistance R9, during for high level, flows through DC current from the negative electrode of controllable silicon TR1 to gate pole, now conducting between the negative electrode of controllable silicon TR1, anode.Alternating current 220V voltage is applied on compressor m, and compressor m works.Alternating current flows through between zero line N, live wire L.
Heavy-current control is all realize with controllable silicon TR1, and compare relay, required drive current is less, and power consumption is lower.Mechanical executing agency, the life-span is longer, and reliability is high.And can realize starting at zero-crossing of alternating current, reduce to disturb electrical network.
To sum up, the present invention can vary with temperature, and is automatically switched on or switched off temperature-compensating heater strip, and temperature control is very accurate, thus solve refrigerator freezing refrigeration difference that user forgets that switch low temp compensating switch or magnet-sensitive switch temperature range error cause or the problem such as power consumption is large, and intelligent level is high.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.
Claims (8)
1. an energy-saving fresh-keeping device, is characterized in that, comprising:
Environment temperature sensor, for detecting the temperature of refrigerator surrounding environment;
Evaporator temperature sensor, for detecting the temperature of the evaporimeter of refrigerator;
Low temp compensating heater strip, for compensating heating when refrigerator environment temperature is low;
Micro-control unit, be connected with described environment temperature sensor, described evaporator temperature sensor, described low temp compensating heater strip, heat for the temperature in refrigerator surrounding environment lower than automatically controlling described low temp compensating heater strip during first setting value and stop heating in the temperature of refrigerator surrounding environment higher than automatically controlling described low temp compensating heater strip during second setting value, controlling the operation of freezer compressor simultaneously according to the detected value of evaporator temperature sensor;
Power circuit, is connected with described micro-control unit, for supplying operating current to described micro-control unit;
Described power circuit comprises the rectified current, mu balanced circuit and the 50Hz testing circuit that connect successively;
Described mu balanced circuit comprises:
One end of one the 3rd electric capacity is connected to the negative electrode of one second Zener diode, one end of one the 4th electric capacity, the positive pole of one second polar capacitor, the other end of described 3rd electric capacity is connected to one end of one the 4th resistance and the colelctor electrode of one first PNP type triode, the other end of described 4th resistance is connected to the anode of described second Zener diode, the base stage of described first PNP type triode, and the emitter stage of described first PNP type triode, the other end of described 4th electric capacity, the negative pole of described second polar capacitor are connected to ground.
2. energy-saving fresh-keeping device according to claim 1, is characterized in that,
Also comprise two signal acquisition circuits, described environment temperature sensor, described evaporator temperature sensor is connected with described micro-control unit respectively by signal acquisition circuit described in, described in one, signal acquisition circuit comprises: one end of one first resistance is connected to one end of one second resistance, the other end of described second resistance is connected to one end of one first electric capacity, the other end of described first electric capacity is connected to ground, the output of described environment temperature sensor or described evaporator temperature sensor is connected to the node of described first resistance and described second resistance, described micro-control unit is connected to the node of described second resistance and described first electric capacity.
3. energy-saving fresh-keeping device according to claim 1, is characterized in that, described rectified current comprises:
The negative electrode of one first diode is connected to the negative electrode of one first Zener diode, the positive pole of one first polar capacitor, the anode of described first diode is connected to one end of one the 3rd resistance, the negative electrode of one second diode, the other end of described 3rd resistance is connected to one end of one second electric capacity, the anode of described second diode is connected to the negative electrode of one the 3rd diode, and the anode of described 3rd diode is connected to the anode of described first Zener diode and the negative pole of described first polar capacitor.
4. energy-saving fresh-keeping device according to claim 1, is characterized in that, described 50Hz testing circuit comprises:
One end of one the 5th resistance is connected to one the 5th electric capacity, the emitter stage of one second PNP type triode, the other end of described 5th resistance is connected to one end of one the 6th resistance, the other end of described 5th electric capacity and the base stage of described second PNP type triode, the other end of described 6th resistance is the input of described 50Hz testing circuit, the colelctor electrode of described second PNP type triode is connected to one end of one the 7th resistance, one end of one the 8th resistance, the other end of described 8th resistance be connected to one the 7th electric capacity one end and as the output of described 50Hz testing circuit, the other end of described 7th resistance, the other end of described 7th electric capacity is connected to ground.
5. energy-saving fresh-keeping device according to claim 1, is characterized in that,
Also comprise the silicon controlled control circuit that two instructions according to described micro-control unit control power supply conducting disconnection, described micro-control unit is connected respectively by the compressor of silicon controlled control circuit described in described low temperature supplementary heating silk, refrigerator.
6. energy-saving fresh-keeping device according to claim 5, is characterized in that, described silicon controlled control circuit comprises:
One end of one the 9th resistance is the input of described silicon controlled control circuit, the other end of described 9th resistance is connected to the base stage of a NPN type triode, the colelctor electrode of described NPN type triode is connected to one end of 1 the tenth resistance, the emitter stage of described NPN type triode is connected to ground, and the other end of described tenth resistance is connected to a silicon controlled gate pole.
7. energy-saving fresh-keeping device according to claim 1, is characterized in that,
Described environment temperature sensor, described evaporator temperature sensor are NTC thermistor.
8. a refrigerator, comprises control system and compressor, it is characterized in that,
Described control system comprises the arbitrary described energy-saving fresh-keeping device of claim 1-7,
Micro-control unit and the described compressor of described energy-saving fresh-keeping device couple.
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| CN201210390835.3A CN102865717B (en) | 2012-10-16 | 2012-10-16 | Refrigerator and energy-saving fresh-keeping device thereof |
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| CN201210390835.3A CN102865717B (en) | 2012-10-16 | 2012-10-16 | Refrigerator and energy-saving fresh-keeping device thereof |
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| CN103062988B (en) * | 2013-02-01 | 2015-03-25 | 合肥美的电冰箱有限公司 | Refrigerator and refrigeration control method thereof |
| CN105486023A (en) * | 2014-09-16 | 2016-04-13 | 苏州益而益电器制造有限公司 | Refrigerator having continuous temperature-adjusting function |
| CN105486022A (en) * | 2014-09-16 | 2016-04-13 | 苏州益而益电器制造有限公司 | Method and device used for controlling internal temperature of refrigeration equipment |
| CN105423690A (en) * | 2014-09-16 | 2016-03-23 | 苏州益而益电器制造有限公司 | Device and method used for continuously adjusting temperature in refrigerating equipment |
| CN105783369A (en) * | 2014-12-26 | 2016-07-20 | 博西华电器（江苏）有限公司 | Refrigerator with compensating heater |
| CN105526775A (en) * | 2015-12-04 | 2016-04-27 | 六安索伊电器制造有限公司 | Low-temperature automatic compensation controller for mechanical refrigerator |
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| CN102013884B (en) * | 2010-11-10 | 2012-07-25 | 刘昭利 | Non-contact shutdown reminding device for high-power electrical appliance |
| CN202836054U (en) * | 2012-10-16 | 2013-03-27 | 中标能效科技（北京）有限公司 | Refrigerator and energy-saving fresh-keeping device |
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| CN2453365Y (en) * | 2000-11-23 | 2001-10-10 | 广东科龙电器股份有限公司 | Electric refrigerator with automatic temp. compensation |
| CN201344703Y (en) * | 2008-11-24 | 2009-11-11 | 海信（北京）电器有限公司 | Automatic temperature compensation control circuit of refrigerator |
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