CN102063136B - Refrigerator intermittent temperature controller manufactured by using time base circuit - Google Patents
Refrigerator intermittent temperature controller manufactured by using time base circuit Download PDFInfo
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- CN102063136B CN102063136B CN 201010556699 CN201010556699A CN102063136B CN 102063136 B CN102063136 B CN 102063136B CN 201010556699 CN201010556699 CN 201010556699 CN 201010556699 A CN201010556699 A CN 201010556699A CN 102063136 B CN102063136 B CN 102063136B
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- base circuit
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Abstract
The invention belongs to the technical field of electronic control, and relates to a refrigerator intermittent temperature controller manufactured by using a time base circuit, which consists of a resistance-capacitance voltage reduction circuit, a full-bridge rectifying circuit, a timing and control circuit, a voltage-stabilized power supply circuit, a filtering circuit, a working condition indicating circuit and a refrigerator power socket. The refrigerator intermittent temperature controller is characterized in that: in a bistable circuit, pins 2 and 6 of the time base circuit NE555 are connected with a positive electrode of a timing capacitor C2, one end of a potentiometer RP2, a positive electrode of a silicon diode D5 and a negative electrode of a silicon diode D6; a negative electrode of the silicon diode D5 is connected with a positive electrode of the voltage-stabilized power supply; a negative electrode of the timing capacitor C2 is connected with the circuit earth; a pin 7 of the time base circuit NE555 is respectively connected with one end and a movable arm of a potentiometer RP1, the other end and a movable arm of the potentiometer RP2 and a positive electrode of the silicon diode D6; and the other end of the potentiometer RP1 is connected with the positive electrode of the voltage-stabilized power supply.
Description
Technical field
The invention belongs to the electron controls technology field, relate to a kind of refrigerator intermittent temperature controller of time spent base circuit production.
Background technology
All carry temperature controller in the casing of all refrigerators; new refrigerator is after use in a few years; the refrigerator meeting occurrence temperature controller performance that has is not good enough and cause compressor not shut down; perhaps the compressor for refrigeration inner refrigerant has slight leakage not shut down, and perhaps refrigeration system of refrigerator has problem and the fault such as do not shut down.Although this type of fault not too affects use, as untimely processing is very harmful, the one, and the compressor for refrigeration long-term operation is not shut down and can be made its fatigue and thoroughly damage; The 2nd, compressor is not shut down for a long time can cause a large amount of power wastages; The 3rd, can lead to the potential safety hazard of refrigerator electricity consumption aspect.Because of the volume of refrigerator, weight all large user be not easy in time bring up to and lift down maintenance.
In order effectively to solve the problem of above-mentioned several respects, on the basis that does not change original refrigerator circuit and inner structure, the present invention can solve above-mentioned several problem, and the realization refrigerator can normally use the purpose with safety utilization of electric power.
Below describe the correlation technique of the refrigerator intermittent temperature controller making of this time spent base circuit production in detail.
Summary of the invention
Goal of the invention and beneficial effect: when the degradation of the temperature controller of refrigerator or when damaging; or inconvenience is configured to new temperature controller for the moment; perhaps refrigeration system of refrigerator has problem not shut down; perhaps the cold-producing medium in the compressor has slight leakage and the fault such as does not shut down, and can use temperature controller of the present invention as emergent.
The present invention not change original refrigerator circuit and inner structure as principle, makes refrigerator reach the purpose of electricity consumption easy to use, safe in design.Using it one is to reduce unnecessary power wastage; The 2nd, can stop the non-stop-machine harm of compressor long-time running, prolong the serviceable life of compressor for refrigeration, the Electrical Safety of effective guarantee refrigerator.
Technical characterictic: the refrigerator intermittent temperature controller of time spent base circuit production, by capacitance-resistance voltage reduction circuit, full bridge rectifier, stabilized voltage supply and filtering circuit, timing and control circuit, working state indicating circuit and refrigerator power socket form, it is characterized in that 2 pin of time base circuit NE555 (IC1) in bistable circuit and the positive pole that 6 pin meet together timing capacitor C2, the end of potentiometer RP2, the negative pole of silicon diode D6, the positive pole of silicon diode D5, the negative pole of silicon diode D5 connects positive pole of stabilized voltage supply (VCC), the negative pole connection circuit ground (GND) of timing capacitor C2,7 pin of time base circuit NE555 (IC1) connect respectively the end of potentiometer RP1 and the lever arm of potentiometer RP1, the lever arm of the other end of potentiometer RP2 and potentiometer RP2, the positive pole of silicon diode D6, another termination positive pole of stabilized voltage supply (VCC) of potentiometer RP1.
The annexation that the composition of other partial circuits and components and parts thereof are mutual
1. 4 pin of time base circuit NE555 (IC1) and 8 pin connect positive pole of stabilized voltage supply (VCC) in the control circuit; the 1 pin connection circuit ground (GND) of time base circuit NE555 (IC1); 5 pin of time base circuit NE555 (IC1) connect an end of capacitor C 3; the other end connection circuit ground (GND) of capacitor C 3; 3 pin of time base circuit NE555 (IC1) connect respectively an end of DC relay (J) coil and the positive pole of protection diode D7, the other end of DC relay (J) coil; the negative pole of protection diode D7 links to each other with positive pole of stabilized voltage supply (VCC).
2. working state indicating circuit is comprised of dropping resistor R2 and LED 1, dropping resistor R3 and LED 2, the negative pole of the 3 pin difference sending and receiving optical diode LED1 of time base circuit NE555 (IC1) and the positive pole of LED 2, connect positive pole of stabilized voltage supply (VCC) behind the positive pole serial connection dropping resistor R2 of LED 1, connection circuit ground (GND) behind the negative pole serial connection dropping resistor R3 of LED 2.
3. an end of the normally opened contact (J-1) of a termination DC relay (J) of refrigerator power socket (CZ), the live wire end (L) of another termination civil power of the normally opened contact (J-1) of DC relay (J), the zero line side (N) of another termination civil power of refrigerator power socket (CZ).
4. capacitance-resistance voltage reduction circuit is composed in parallel by decompression capacitor C1, bleeder resistance R1, the end of decompression capacitor C1 one end and bleeder resistance R1 connects respectively the live wire end (L) of civil power, normally opened contact (J-1) end of DC relay (J), and the other end of the other end of decompression capacitor C1 and bleeder resistance R1 is with connecing the negative pole of the silicon diode D1 in the full bridge rectifier and the positive pole of silicon diode D3.
Principle of work
The refrigerator intermittent temperature controller of time spent base circuit production, in fact its core is a bistable circuit, principle of work is:
When controller circuitry is connected mains supply, because 2,6 pin of time base circuit (IC1) are low level, then time base circuit (IC1) triggers set, it is that 3 pin of time base circuit (IC1) become high level, the coil no current of DC relay this moment (J) makes normally opened contact (J-1) be in release conditions, and compressor for refrigeration is not worked without electricity.Electric current charges to timing capacitor C2 through resistance R P1, As time goes on, when the voltage at timing capacitor C2 two ends rises to 2/3 stabilized voltage supply voltage (VCC), time base circuit (IC1) automatically resets, make 3 pin of time base circuit (IC1) become low level, the coil of the relay (J) that 3 pin of time base circuit (IC1) connect gets electric normally opened contact (J-1) adhesive that makes, the compressor for refrigeration refrigeration of starting working.Because 3 pin of time base circuit (IC1) are low level, so that the threshold voltage of time base circuit (IC1) is not 1/3 supply voltage, this moment, C2 discharged by 7 pin of time base circuit (IC1) internal discharge pipe through potentiometer RP2, when discharging into voltage on the timing capacitor C2 always and being down to 1/3 supply voltage, time base circuit (IC1) set of overturning again makes 3 pin of time base circuit (IC1) transfer again high level to.According to the value of this circuit working schematic diagram and element, suitably the resistance of regulator potentiometer RP1 and RP2 can make the stop time of refrigerator, on time respectively be controlled between 5～28 minutes.
Description of drawings
1. accompanying drawing is the refrigerator intermittent temperature controller circuit working schematic diagram of time spent base circuit production.
2. IC1 is the time base circuit integrated circuit in the accompanying drawing, and model is: NE555.
3. time-base integrated circuit NE555 (IC1) is 8 pin DIP encapsulation, and each pin function: 1 pin is circuit ground (GND); 2 pin are trigger end; 3 pin are output terminal; 4 pin are reset terminal; 5 pin are control voltage; 6 pin are thresholding (threshold value); 7 pin are discharge end; 8 pin are positive source (VCC).
4. DC relay (J) has 5 pin, and wherein: the coil of relay has 2 pin, and power stage has 3 pin, and 3 pin form respectively normally opened contact and normally closed contact, and J-1 is the normally opened contact of relay (J) in the accompanying drawing.
5. CZ is the supply socket of refrigerator in the accompanying drawing.
Embodiment
Technical requirement according to the schematic diagram of circuit working shown in the accompanying drawing and description of drawings and the following stated is implemented, and can realize the present invention.
The selection of components and parts and technical parameter thereof
| Element number | The components and parts title | Major parameter | Quantity | Remarks |
| IC1 | Time base circuit IC, NE555 | DIP encapsulation, 8 |
1 | |
| D1～D4 | 1N4007 (silicon rectifier diode) | Plastic packaging, 1A/ |
4 | Or 1N5408 |
| WD | Voltage stabilizing diode | 12V、 |
1 | |
| D5～D7 | Switching diode | 1N4148 or 1N4002 | 3 | |
| LED1 | |
1 | ||
| LED2 | |
1 | ||
| R1 | Resistance | 2W、 |
1 | The step-down bleeder resistance |
| R2、 | Resistance | 1/8W、910Ω | 2 | The step-down current-limiting resistance | |
| RP1、RP2 | Trimmer potentiometer | Linear, 1.6M Ω | 2 | Solderable | |
| C1 | Electric capacity of the dacron | 0.68μF/ |
1 | ||
| C2 | Electrochemical capacitor | 1500μF/ |
1 | Timing capacitor | |
| C3 | Electric capacity of the dacron | 0.01μF/ |
1 | Or ceramic disc capacitor | |
| C4 | Electrochemical capacitor | 1000μF/ |
1 | Power filtering capacitor | |
| J | DC relay, JCZ-22F | Contactless power: 15A/ |
1 | Coil voltage 12V 100mA | |
| L, N end | Connect the 220V AC power | Solderable | 1 group | 2 | |
| CZ | Supply socket | 15A/ |
1 |
The timing length of circuit is definite by the value of electrochemical capacitor C2, potentiometer RP1 and potentiometer RP2, that is: T ≈ 1.1 * C2 * RP*; Open or the time needs of timed-shutoff according to the timing of refrigerator, the capacity of electrochemical capacitor C2 can be selected in 1000 μ F to 1500 μ F scopes, and the maximal value of potentiometer RP1 or potentiometer RP2 is 1.6M Ω; According to the technical parameter of above-mentioned components and parts, the timing of circuit is opened or the maximum duration of timed-shutoff is about 28 minutes.
Make main points and circuit debugging
The refrigerator intermittent temperature controller of time spent base circuit production in use can be according to the change of Various Seasonal temperature change, and the resistance of suitably regulating trimmer potentiometer RP1 and trimmer potentiometer RP2 makes the minimum temperature of refrigerator and maximum temperature reach requirement.Maximum temperature and minimum temperature difference should be controlled between 6～10 ℃ in the case of refrigerator.Adjust each compressor for refrigeration and be not less than stop time in 5 minutes the situation, per hour starting shooting, shut down and respectively be no more than 7 times, affecting the life-span otherwise compressor operating is too frequent.
According to the connection of components and parts on the circuit theory diagrams in the accompanying drawing, and DC relay (J) is used normally opened contact (J-1) can effectively stop civil power to have a power failure suddenly and then restore electricity rapidly again, cause the fault of compressor for refrigeration stall.
After this controller circuitry was debugged, circuitry can be packed in the cabinet, and socket CZ also can extract other installation.
Claims (4)
1. the refrigerator intermittent temperature controller of time spent base circuit production, it is by resistance-capacitance depressurization, full-bridge rectification, stabilized voltage supply and filtering circuit, timing and control circuit, working state indicating circuit and refrigerator power socket form, it is characterized in that: the positive pole that 2 pin of the time base circuit NE555 (IC1) in timing and control circuit and 6 pin meet the 2nd electric capacity (C2), one end of the 2nd potentiometer (RP2), the negative pole of the 6th silicon diode (D6), the positive pole of the 5th silicon diode (D5), the negative pole of the 5th silicon diode (D5) connects stabilized voltage supply (VCC) positive pole, the negative pole connection circuit ground (GND) of the 2nd electric capacity (C2), 7 pin of time base circuit NE555 (IC1) connect an end of the 1st potentiometer (RP1) and the lever arm of the 1st potentiometer (RP1), the lever arm of the other end of the 2nd potentiometer (RP2) and the 2nd potentiometer (RP2), the positive pole of the 6th silicon diode (D6), another termination stabilized voltage supply (VCC) positive pole of the 1st potentiometer (RP1); 4 pin of time base circuit NE555 (IC1) and 8 pin connect stabilized voltage supply (VCC) utmost point, the 1 pin connection circuit ground (GND) of time base circuit NE555 (IC1), 5 pin of time base circuit NE555 (IC1) connect an end of the 3rd electric capacity (C3), the other end connection circuit ground (GND) of the 3rd electric capacity (C3), 3 pin of time base circuit NE555 (IC1) connect an end of DC relay (J) coil and the positive pole of the 7th silicon diode (D7), the other end of DC relay (J) coil, the negative pole of the 7th silicon diode (D7) links to each other with stabilized voltage supply (VCC) is anodal.
2. the refrigerator intermittent temperature controller of time spent according to claim 1 base circuit production, it is characterized in that: working state indicating circuit is by the 2nd resistance (R2) and the 1st light emitting diode (LED1), the 3rd resistance (R3) forms with the 2nd light emitting diode (LED2), 3 pin of time base circuit NE555 (IC1) connect respectively the negative pole of the 1st light emitting diode (LED1) and the positive pole of the 2nd light emitting diode (LED2), the positive pole of the 1st light emitting diode (LED1) connects stabilized voltage supply (VCC) positive pole after being connected in series the 2nd resistance (R2), and the negative pole of the 2nd light emitting diode (LED2) is connected in series the rear connection circuit ground (GND) of the 3rd resistance (R3).
3. the refrigerator intermittent temperature controller of time spent according to claim 1 base circuit production, it is characterized in that: an end of the normally opened contact (J-1) of a termination DC relay (J) of refrigerator power socket (CZ), the live wire end (L) of another termination civil power of the normally opened contact (J-1) of DC relay (J), the zero line side (N) of another termination civil power of refrigerator power socket (CZ).
4. the refrigerator intermittent temperature controller of time spent according to claim 1 base circuit production, it is characterized in that: capacitance-resistance voltage reduction circuit is by the 1st electric capacity (C1), the 1st resistance (R1) forms, one end of one end of the 1st electric capacity (C1) and the 1st resistance (R1) connects respectively the live wire end (L) of civil power, normally opened contact (J-1) end of DC relay (J), the negative pole of the 1st silicon diode (D1) in another termination full bridge rectifier of the 1st electric capacity (C1) and the 1st resistance (R1) and the positive pole of the 3rd silicon diode (D3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010556699 CN102063136B (en) | 2010-11-23 | 2010-11-23 | Refrigerator intermittent temperature controller manufactured by using time base circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010556699 CN102063136B (en) | 2010-11-23 | 2010-11-23 | Refrigerator intermittent temperature controller manufactured by using time base circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102063136A CN102063136A (en) | 2011-05-18 |
| CN102063136B true CN102063136B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010556699 Expired - Fee Related CN102063136B (en) | 2010-11-23 | 2010-11-23 | Refrigerator intermittent temperature controller manufactured by using time base circuit |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411385A (en) * | 2011-12-25 | 2012-04-11 | 魏传永 | Time-based circuit temperature control timer |
| CN102538380A (en) * | 2012-01-29 | 2012-07-04 | 王寅寅 | Refrigerator temperature controller made of NE555 |
| CN102566619B (en) * | 2012-02-07 | 2013-12-25 | 宁波市镇海华泰电器厂 | Noise type water temperature control device |
| CN102566624B (en) * | 2012-02-07 | 2013-12-25 | 宁波市镇海华泰电器厂 | Noise-type water temperature control device |
| CN102591380A (en) * | 2012-02-28 | 2012-07-18 | 何林 | Agricultural dual-limit temperature controller |
| CN103195731A (en) * | 2013-04-11 | 2013-07-10 | 朱慧玲 | Discontinuous running ventilator controller |
| CN103809629A (en) * | 2014-03-10 | 2014-05-21 | 吴圣铎 | Table top temperature controller for heat-preserving dining table |
| CN103815856A (en) * | 2014-03-18 | 2014-05-28 | 周芸 | Temperature regulator of shoe warming plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060866U (en) * | 1988-12-31 | 1990-08-22 | 湖北省黄石市制冷配件厂 | Computer controller for refrigerator or cold cupboard |
| CN2104414U (en) * | 1991-02-06 | 1992-05-13 | 王接枝 | Electronical temp. control unit for refrigerator |
| CN201853146U (en) * | 2010-11-23 | 2011-06-01 | 黄勇 | Refrigerator intermittent temperature controller made by time base circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63226578A (en) * | 1987-03-13 | 1988-09-21 | 株式会社東芝 | Temperature control circuit for refrigerator |
-
2010
- 2010-11-23 CN CN 201010556699 patent/CN102063136B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060866U (en) * | 1988-12-31 | 1990-08-22 | 湖北省黄石市制冷配件厂 | Computer controller for refrigerator or cold cupboard |
| CN2104414U (en) * | 1991-02-06 | 1992-05-13 | 王接枝 | Electronical temp. control unit for refrigerator |
| CN201853146U (en) * | 2010-11-23 | 2011-06-01 | 黄勇 | Refrigerator intermittent temperature controller made by time base circuit |
Non-Patent Citations (1)
| Title |
|---|
| JP昭63-226578A 1988.09.21 |
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|---|---|
| CN102063136A (en) | 2011-05-18 |
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Granted publication date: 20130320 Termination date: 20131123 |