CN101696831A - Mechanical temperature-control refrigerating system for improving refrigerating capability of direct-cool refrigerator and control method thereof - Google Patents
Mechanical temperature-control refrigerating system for improving refrigerating capability of direct-cool refrigerator and control method thereof Download PDFInfo
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- CN101696831A CN101696831A CN200910184919A CN200910184919A CN101696831A CN 101696831 A CN101696831 A CN 101696831A CN 200910184919 A CN200910184919 A CN 200910184919A CN 200910184919 A CN200910184919 A CN 200910184919A CN 101696831 A CN101696831 A CN 101696831A
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- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000005057 refrigeration Methods 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims description 11
- 230000009977 dual effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract 4
- 230000008014 freezing Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
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Abstract
The invention relates to a mechanical temperature-control refrigerating system for improving the refrigerating capability of a direct-cool refrigerator and a control method thereof. In the refrigerating system consisting of a compressor, a condenser, a main loop capillary, a cold chamber evaporator and a freezing chamber evaporator, a bypass electromagnetic valve is arranged between an outlet end of the condenser and the main loop capillary, a bypass outlet end of the bypass electromagnetic valve is connected with an inlet end of the freezing chamber evaporator through a bypass capillary, and a mechanical temperature controller is adopted. The mechanical temperature-control refrigerating system is characterized in that the temperature controller is set to be a double-contact temperature control change-over switch, wherein the on-off contact a of the temperature controller is connected in series in a power supply loop of a electromagnetic valve coil, and the on-off contact b of the temperature controller is connected in series in a power supply loop of the compressor; and a quick-freezing switch is connected in parallel with the on-off contact b of the temperature controller. The invention can realize the separate refrigeration and the continuous refrigeration of a freezing chamber, greatly improve the refrigerating capability of the refrigerator, and also keep the energy saving effect of the refrigerator.
Description
Technical field
The present invention relates to the refrigeration system and the control mode of mechanical temperature-control direct cooling refrigerator or similar refrigerating appliance.
Background technology
In the prior art, at the direct-cooled household refrigerator-freezer of mechanical temperature-control, refrigeration system adopts refrigerator evaporator to connect with freezer evaporator, and the start and stop by being installed in the mechanical temperature controller control compressor in the refrigerating chamber realize that refrigerating chamber and refrigerating chamber freeze synchronously.Because of the temperature of refrigerating chamber can not be lower than 0 ℃, and refrigerating chamber and refrigerating chamber can only freeze synchronously, cause the refrigerating capacity of refrigerator to improve, and promptly the ability of frozen food is lower; Another mode, direct-cooled household refrigerator-freezer adopts double temperature double control, all adopts the computer electronic controller, though can improve its refrigerating capacity, cost is higher.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point, a kind of mechanical temperature-control direct cooling refrigerator refrigeration system that improves refrigerating capacity being provided.
The present invention provides the control mode of this refrigeration system simultaneously.
Technical solution problem of the present invention adopts following technical scheme.
The version that the present invention improves the mechanical temperature-control direct cooling refrigerator refrigeration system of refrigerating capacity is in the refrigeration system that is made of compressor (1), condenser (2), major loop capillary (4), refrigerator evaporator (6) and freezer evaporator (7), be positioned between the port of export and major loop capillary (4) of condenser (2), bypass magnetic valve (3) is set, connect the arrival end of freezer evaporator (7) at the bypass port of export of described bypass magnetic valve (3) by bypass capillary (5), adopt mechanical temperature controller (9);
The design feature of system of the present invention is that temperature controller (9) is set is double-contact temperature control change-over switch, wherein, the switch contact a of temperature controller (9) is serially connected in the electric power loop of electromagnetic valve coil (10), and the switch contact b of temperature controller (9) is serially connected in the electric power loop of compressor (1); It is in parallel with switch contact b in the temperature controller (9) that quick-frozen switch (8) is set.
The design feature of system of the present invention also is to be provided with described quick-frozen switch (8) and throws off the pass for double-pole is two, wherein, the switch contact c of quick-frozen switch (8) is in parallel with the switch contact b of described temperature controller (9), and the switch contact d of quick-frozen switch (8) is serially connected in the electric power loop of electromagnetic valve coil (10).
The characteristics of the control method of mechanical temperature-control direct cooling refrigerator refrigeration system of the present invention are system works to be set under following dual mode:
First kind: quick-frozen switch (8) is connected, and the electric power loop of compressor (1) remains on on-state, by the on-off of temperature controller (9) control electromagnetic valve coil (10); Reach when stopping cryogenic temperature at temperature of refrigerating chamber, temperature controller (9) is connected the electric power loop of electromagnetic valve coil (10), and magnetic valve (3) switches cold-producing medium and directly enters freezer evaporator (7) by bypass capillary (5); When refrigerating chamber reached the temperature that needs refrigeration, temperature controller (9) disconnected the electric power loop of electromagnetic valve coil (10), and magnetic valve (3) switches cold-producing medium and enters the refrigerator evaporator (6) and the freezer evaporator (7) of series connection by major loop capillary (4);
Second kind: quick-frozen switch (8) disconnects, and the electric power loop of compressor (1) is by the switch contact b control on-off of temperature controller (9); Reach when stopping cryogenic temperature at temperature of refrigerating chamber, the working power that the switch contact b of temperature controller (9) cuts off compressor (1) stops refrigeration; When refrigerating chamber reaches the temperature that needs refrigeration, the switch contact b of temperature controller (9) connects the working power of compressor (1), disconnect the electric power loop of electromagnetic valve coil (10) simultaneously, cold-producing medium enters the refrigerator evaporator (6) and the freezer evaporator (7) of series connection by major loop capillary (4).
The present invention increases a contact is set on the basis of the existing single contact of temperature controller, two pairs of contact switch are changed by temperature control, behind the quick-frozen switch connection, the start-stop of compressor is no longer controlled in compressor continuous operation, temperature controller, and begins to control the power on/off of magnetic valve, when temperature of refrigerating chamber reaches when stopping cryogenic temperature, temperature controller is connected the power supply of electromagnetic valve coil, and magnetic valve switches cold-producing medium and directly enters freezer evaporator by the bypass capillary, only is the refrigerating chamber refrigeration; When refrigerating chamber reached the temperature that needs refrigeration, temperature controller disconnected the power supply of electromagnetic valve coil, and magnetic valve switches cold-producing medium and enters the refrigerator evaporator and the freezer evaporator of series connection by the major loop capillary, and refrigerating chamber and refrigerating chamber freeze simultaneously.This mode can make that temperature of refrigerating chamber is not less than 0 ℃ during quick-frozen, and the refrigerating chamber continuous cooling, improves refrigerating capacity; After the quick-frozen switch disconnects, by temperature controller control compressor start-stop, when temperature controller is connected compressor loop, the outage of the electromagnetic valve coil of magnetic valve, cold-producing medium enters refrigerator evaporator by the major loop capillary, and refrigerating chamber and refrigerating chamber freeze simultaneously; When temperature of refrigerating chamber dropped to the temperature of setting, temperature controller disconnected compressor loop, stopped refrigeration, kept its energy-conservation effect.
Compared with the prior art, the present invention can realize refrigerating chamber separate refrigeration and continuous cooling, increases substantially refrigerating capacity, has also kept its energy-conservation effect simultaneously.
Description of drawings
Fig. 1 is a refrigeration system schematic diagram of the present invention.
Fig. 2 is electric control theory figure of the present invention.
Fig. 3 is another embodiment schematic diagram of the present invention.
Number in the figure: 1 compressor, 2 condensers, 3 magnetic valves, 4 major loop capillaries, 5 bypass capillaries, 6 refrigerator evaporators, 7 freezer evaporators, 8 quick-frozen switches, 9 temperature controllers, 10 electromagnetic valve coils.
Below pass through the specific embodiment, and the invention will be further described in conjunction with the accompanying drawings.
The specific embodiment
Referring to Fig. 1, in the present embodiment, in the refrigeration system that constitutes by compressor 1, condenser 2, major loop capillary 4, refrigerator evaporator 6 and freezer evaporator 7, between the port of export and major loop capillary 4 of condenser 2, bypass magnetic valve 3 is set, connect the arrival end of freezer evaporator 7 at the bypass port of export of bypass magnetic valve 3 by bypass capillary 5, adopt mechanical temperature controller 9;
Referring to Fig. 2, temperature controller 9 is set in the present embodiment is double-contact temperature control change-over switch, wherein, the switch contact a of temperature controller 9 is serially connected in the electric power loop of electromagnetic valve coil 10, and the switch contact b of temperature controller 9 is serially connected in the electric power loop of compressor 1; It is in parallel with switch contact b in the temperature controller 9 that quick-frozen switch 8 is set.
In the present embodiment, the control method of mechanical temperature-control direct cooling refrigerator refrigeration system is system works to be set under following dual mode:
First kind: quick-frozen switch 8 is connected, and the electric power loop of compressor 1 remains on on-state, by the on-off of temperature controller 9 control electromagnetic valve coils 10; Reach when stopping cryogenic temperature at temperature of refrigerating chamber, temperature controller 9 is connected the electric power loop of electromagnetic valve coils 10, and magnetic valve 3 switches cold-producing mediums and directly enters freezer evaporator 7 by bypass capillary 5; When refrigerating chamber reached the temperature that needs refrigeration, temperature controller 9 disconnected the electric power loop of electromagnetic valve coil 10, and magnetic valve 3 switches cold-producing medium and enters the refrigerator evaporator 6 and the freezer evaporator 7 of series connection by major loop capillary 4;
Second kind: quick-frozen switch 8 disconnects, and the electric power loop of compressor 1 is by the switch contact b control on-off of temperature controller 9; Reach when stopping cryogenic temperature at temperature of refrigerating chamber, the working power that the switch contact b of temperature controller 9 cuts off compressor 1 stops refrigeration; When refrigerating chamber reaches the temperature that needs refrigeration, the switch contact b of temperature controller 9 connects the working power of compressor 1, disconnect the electric power loop of electromagnetic valve coil 10 simultaneously, cold-producing medium enters the refrigerator evaporator 6 and the freezer evaporator 7 of series connection by major loop capillary 4.
In second kind of working method: when reaching at temperature of refrigerating chamber when stopping cryogenic temperature, the working power that the switch contact b of temperature controller 9 cuts off compressor 1 stops refrigeration, but connected the electric power loop of electromagnetic valve coil 10 simultaneously, at this moment, though do not freeze, electromagnetic valve coil 10 still is in the state of connecting power consumption; For this reason, can be by as shown in Figure 3, quick-frozen switch 8 is set throws off the pass for double-pole is two, wherein, the switch contact c of quick-frozen switch 8 is switch contact b parallel connections of temperature controller 9, and the switch contact d of quick-frozen switch 8 is serially connected in the electric power loop of electromagnetic valve coil 10, when quick-frozen switch 8 disconnects, no matter temperature controller 9 is in any state, keep solenoid 10 for outage, reduce energy consumption with this.
For the two quick-frozen switches 8 of throwing away version of double-pole, when quick-frozen switch 8 disconnects, promptly disconnected the electric power loop of electromagnetic valve coil 10, the electric power loop of compressor 1 is directly controlled on-off by temperature controller 9; Reach when stopping cryogenic temperature at temperature of refrigerating chamber, the working power that temperature controller 9 cuts off compressors 1 stops refrigeration; When refrigerating chamber reached the temperature that needs refrigeration, temperature controller 9 was connected the working power of compressor 1, and cold-producing medium enters the refrigerator evaporator 6 and the freezer evaporator 7 of series connection by major loop capillary 4.
Claims (3)
1. improve the mechanical temperature-control direct cooling refrigerator refrigeration system of refrigerating capacity, it is characterized in that in the refrigeration system that constitutes by compressor (1), condenser (2), major loop capillary (4), refrigerator evaporator (6) and freezer evaporator (7), be positioned between the port of export and major loop capillary (4) of condenser (2), bypass magnetic valve (3) is set, connect the arrival end of freezer evaporator (7) at the bypass port of export of described bypass magnetic valve (3) by bypass capillary (5), adopt mechanical temperature controller (9); It is characterized in that being provided with temperature controller (9) is double-contact temperature control change-over switch, and wherein, the switch contact a of temperature controller (9) is serially connected in the electric power loop of electromagnetic valve coil (10), and the switch contact b of temperature controller (9) is serially connected in the electric power loop of compressor (1); It is in parallel with switch contact b in the temperature controller (9) that quick-frozen switch (8) is set.
2. the mechanical temperature-control direct cooling refrigerator refrigeration system of raising refrigerating capacity according to claim 1, it is characterized in that being provided with described quick-frozen switch (8) and throw off the pass for double-pole is two, wherein, the switch contact c of quick-frozen switch (8) is in parallel with the switch contact b of described temperature controller (9), and the switch contact d of quick-frozen switch (8) is serially connected in the electric power loop of electromagnetic valve coil (10).
3. the control method of claim 1 or 2 described mechanical temperature-control direct cooling refrigerator refrigeration systems is characterized in that being provided with system works under following dual mode:
First kind: quick-frozen switch (8) is connected, and the electric power loop of compressor (1) remains on on-state, by the on-off of temperature controller (9) control electromagnetic valve coil (10); Reach when stopping cryogenic temperature at temperature of refrigerating chamber, temperature controller (9) is connected the electric power loop of electromagnetic valve coil (10), and magnetic valve (3) switches cold-producing medium and directly enters freezer evaporator (7) by bypass capillary (5); When refrigerating chamber reached the temperature that needs refrigeration, temperature controller (9) disconnected the electric power loop of electromagnetic valve coil (10), and magnetic valve (3) switches cold-producing medium and enters the refrigerator evaporator (6) and the freezer evaporator (7) of series connection by major loop capillary (4);
Second kind: quick-frozen switch (8) disconnects, and the electric power loop of compressor (1) is by the switch contact b control on-off of temperature controller (9); Reach when stopping cryogenic temperature at temperature of refrigerating chamber, the working power that the switch contact b of temperature controller (9) cuts off compressor (1) stops refrigeration; When refrigerating chamber reaches the temperature that needs refrigeration, the switch contact b of temperature controller (9) connects the working power of compressor (1), disconnect the electric power loop of electromagnetic valve coil (10) simultaneously, cold-producing medium enters the refrigerator evaporator (6) and the freezer evaporator (7) of series connection by major loop capillary (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184919A CN101696831B (en) | 2009-10-21 | 2009-10-21 | Mechanical temperature-control refrigerating system for improving refrigerating capability of direct-cool refrigerator and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184919A CN101696831B (en) | 2009-10-21 | 2009-10-21 | Mechanical temperature-control refrigerating system for improving refrigerating capability of direct-cool refrigerator and control method thereof |
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| Publication Number | Publication Date |
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| CN101696831A true CN101696831A (en) | 2010-04-21 |
| CN101696831B CN101696831B (en) | 2012-10-03 |
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| CN200910184919A Active CN101696831B (en) | 2009-10-21 | 2009-10-21 | Mechanical temperature-control refrigerating system for improving refrigerating capability of direct-cool refrigerator and control method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353204A (en) * | 2011-08-24 | 2012-02-15 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN101696830B (en) * | 2009-10-21 | 2012-08-29 | 合肥华凌股份有限公司 | Mechanical temperature control refrigerator refrigeration system capable of quickly freezing and closing cold room and control method |
| CN104101145A (en) * | 2013-04-03 | 2014-10-15 | 海尔集团公司 | Control method and control circuit for refrigerating system |
| CN104101146A (en) * | 2013-04-03 | 2014-10-15 | 海尔集团公司 | Refrigeration system and refrigeration equipment |
| CN104501439A (en) * | 2014-12-24 | 2015-04-08 | 合肥美的电冰箱有限公司 | Refrigerating system for refrigerator and refrigerator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2482036Y (en) * | 2001-05-22 | 2002-03-13 | 广东科龙电器股份有限公司 | Direct-cooled refrigerator with changeable temp. chamber |
| CN2497255Y (en) * | 2001-09-21 | 2002-06-26 | 广东科龙电器股份有限公司 | Direct-freezing refrigerator |
| JP2005156108A (en) * | 2003-11-28 | 2005-06-16 | Matsushita Electric Ind Co Ltd | Refrigerator |
| CN2697535Y (en) * | 2004-04-14 | 2005-05-04 | 合肥美菱股份有限公司 | Mechanical temp controlled double-circulation refrigerator |
| CN1598446A (en) * | 2004-08-19 | 2005-03-23 | 海信集团有限公司 | Refrigerator with function of changing refrigerating and freezing and its contorl method |
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2009
- 2009-10-21 CN CN200910184919A patent/CN101696831B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696830B (en) * | 2009-10-21 | 2012-08-29 | 合肥华凌股份有限公司 | Mechanical temperature control refrigerator refrigeration system capable of quickly freezing and closing cold room and control method |
| CN102353204A (en) * | 2011-08-24 | 2012-02-15 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN102353204B (en) * | 2011-08-24 | 2013-09-04 | 合肥美的电冰箱有限公司 | Refrigerator |
| CN104101145A (en) * | 2013-04-03 | 2014-10-15 | 海尔集团公司 | Control method and control circuit for refrigerating system |
| CN104101146A (en) * | 2013-04-03 | 2014-10-15 | 海尔集团公司 | Refrigeration system and refrigeration equipment |
| CN104101146B (en) * | 2013-04-03 | 2016-12-28 | 海尔集团公司 | Refrigeration system and refrigeration plant |
| CN104501439A (en) * | 2014-12-24 | 2015-04-08 | 合肥美的电冰箱有限公司 | Refrigerating system for refrigerator and refrigerator |
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| Publication number | Publication date |
|---|---|
| CN101696831B (en) | 2012-10-03 |
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