CN101216234A - Frost-free refrigerator cooling system - Google Patents
Frost-free refrigerator cooling system Download PDFInfo
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- CN101216234A CN101216234A CNA2007100328340A CN200710032834A CN101216234A CN 101216234 A CN101216234 A CN 101216234A CN A2007100328340 A CNA2007100328340 A CN A2007100328340A CN 200710032834 A CN200710032834 A CN 200710032834A CN 101216234 A CN101216234 A CN 101216234A
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- refrigeration system
- evaporator
- refrigerating
- refrigeration
- frost
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Abstract
The invention relates to a refrigeration system for a frost-free refrigerator, comprising a refrigeration system arranged with a refrigeration evaporator; a freezing system composed of a fin evaporator and a freezing evaporator that are connected in parallel; a switching device for switching between the fin evaporator and the freezing evaporator in the freezing system and realizing independent turning-on/off of the freezing system and the refrigeration system; a master control board for controlling the switching device, wherein the refrigeration system is connected with the freezing system in parallel and then connected with a compressor and a condenser to form a closed refrigerating loop. The refrigeration system combines the advantages of wind cooling system and direct cooling system, and has the advantages of high operating efficiency, rapid temperature drop, low energy consumption, saving energy and good food refrigeration and fresh-keeping effects.
Description
Technical field
The present invention relates to the refrigerator technical field, specifically is a kind of refrigeration system of frost-free refrigerator.
Background technology
Existing fridge-freezer generally all is to adopt the direct-cooled system that includes refrigeration evaporator and refrigerating evaporator, just usually said direct cooling refrigerator separately; Or comprise the air cooling system of evaporator fin, just usually said wind cooling refrigerator or claim frost-free refrigerator.The shortcoming that wherein direct-cooled system exists is: (1) single refrigerating chamber cooling rate is slow, is unfavorable for food such as meat fast by the ice crystal band, and fresh keeping property is general; (2) system is after operation a period of time, and the interior frosting of refrigerating chamber is serious, influences the heat exchange efficiency of evaporimeter; (3) can only rely on the shutdown defrost, the frost layer is difficult for removing.And the shortcoming that air cooling system exists is: (1) running noise is big; (2) energy consumption is bigger, and is energy-conservation inadequately; (3) foodstuff storing moisture content runs off soon, and easily air-dry, the fresh-keeping effect of food is poor.
Summary of the invention
The shortcoming that the objective of the invention is to overcome above-mentioned prior art provides a kind of refrigeration system of the frost-free refrigerator in conjunction with air cooling system and direct-cooled system advantage, its operational efficiency height, cooling fast, energy consumption is little, be easy to energy-conservation, and the refrigeration of food and good refreshing effect.
Technical scheme of the present invention is: a kind of refrigeration system of frost-free refrigerator, comprise the refrigerating system that is provided with refrigeration evaporator, the refrigeration system that is formed in parallel by evaporator fin and refrigerating evaporator, comprise that also the conversion equipment that refrigeration system, refrigerating system open and close is separately changed and realized to evaporator fin and refrigerating evaporator mutually in the refrigeration system, and control conversion equipment master board, wherein refrigerating system and refrigeration system and connect the back with compressor, condenser be connected to form the closure refrigerating circuit.
Above-mentioned refrigerating system and refrigeration system are connected in parallel.
Above-mentioned conversion equipment is a magnetic valve.
The feedback temperature signal that above-mentioned master board receives derives from refrigerating chamber temperature-sensitive head, refrigerating chamber temperature-sensitive head and door switch signal.
The running of above-mentioned refrigeration system is: the beginning of household refrigerator-freezer energising refrigeration, control the evaporator fin work that allows earlier by master control borad, realize the refrigerating chamber fast cooling, remove the moisture content in the humid air in the refrigerating chamber simultaneously, when freezer temperature reaches design temperature, the work of master board control conversion equipment realizes the conversion of evaporator fin and refrigerating evaporator.
The present invention compared with prior art has following advantage:
(1) cooling rate of the present invention is fast, and refrigeration and fresh keeping property are good;
(2) refrigeration system defrost of the present invention is fast, effectively removes the moisture in the humid air in the refrigerating chamber, and frosting is few, and the heat exchange efficiency height is easy to energy-conservation;
(3) noise is little in the refrigeration system running of the present invention, reaches quiet effect;
(4) the present invention can be according to user's specific requirement, and refrigerating chamber, refrigerating chamber all can be closed separately, and energy-saving effect is better.
Description of drawings
Fig. 1 is the work schematic diagram of the direct-cooled refrigeration system of prior art refrigerator;
Fig. 2 is the work schematic diagram of prior art refrigerator air cooling refrigeration system;
Fig. 3 is a kind of frost-free refrigerator refrigeration system of the present invention work schematic diagram.
The specific embodiment
Fig. 1 is the work schematic diagram of the direct-cooled refrigeration system of prior art refrigerator, and refrigeration evaporator, refrigerating evaporator, compressor, condenser are connected in series and form the refrigerating circuit of direct-cooled system.
Fig. 2 is the work schematic diagram of prior art refrigerator air cooling refrigeration system, and evaporator fin and compressor, condenser are serially connected in the refrigerating circuit of air cooling system.
As shown in Figure 3, a kind of refrigeration system of frost-free refrigerator, comprise refrigeration system and the refrigerating system that comprises refrigeration evaporator by evaporator fin and refrigerating evaporator parallel connection, refrigeration system and refrigerating system are connected in parallel then and compressor, condenser is connected to form closed refrigerating circuit, this refrigeration system also comprises the realization refrigerating chamber, the magnetic valve that evaporator fin is changed mutually in refrigerating chamber switching and the refrigeration system, and the master board of control magnetic valve, master board through feedback signal and programmed values relatively after conversion by the control magnetic valve realize refrigerating chamber, evaporator fin and refrigerating evaporator conversion in refrigerating chamber switching and the refrigeration system, wherein the signal of master board source has three kinds, i.e. the temperature signal of refrigerating chamber temperature-sensitive head feedback, the temperature signal of the enabling signal of door switch place feedback and refrigerating chamber temperature-sensitive head feedback.
The running of above-mentioned refrigeration system is: the beginning of household refrigerator-freezer energising refrigeration, control the evaporator fin work that allows earlier by master control borad, realize the refrigerating chamber fast cooling, remove the moisture content in the humid air in the refrigerating chamber simultaneously, when freezer temperature reaches design temperature (for example-5 ℃), the temperature signal control magnetic valve conversion of refrigerating chamber temperature-sensitive head feedback is received in master board, realizes the conversion of evaporator fin and refrigerating evaporator.
Because this intrasystem refrigeration system is in parallel with refrigerating system, thereby refrigerating chamber and refrigerating chamber all can be realized independent switching, the operation of refrigerating chamber is not influenced by freezing system works, move voluntarily according to the temperature conditions in the refrigerating chamber fully. as a same reason, refrigerating chamber is not influenced by temperature of refrigerating chamber yet, moves voluntarily according to temperature conditions in the refrigerating chamber.This refrigeration system combines the advantage of two kinds of systems, is easy on refrigerator product, realize, and the operational efficiency height, energy consumption is little, simultaneously food refrigerated and good refreshing effect.
Claims (7)
1. the refrigeration system of a frost-free refrigerator, its characteristics are: comprise the refrigerating system that is provided with refrigeration evaporator, the refrigeration system that is formed in parallel by evaporator fin and refrigerating evaporator.
2. the refrigeration system of frost-free refrigerator according to claim 1 is characterized in that described refrigerating system and refrigeration system are connected in parallel.
3. the refrigeration system of frost-free refrigerator according to claim 1 and 2, it is characterized in that: also comprise and realize that the conversion equipment that refrigeration system, refrigerating system open and close is separately changed and realized to evaporator fin and refrigerating evaporator mutually in the refrigeration system, and the master board of control conversion equipment.
4. the refrigeration system of frost-free refrigerator according to claim 3, it is characterized in that: described conversion equipment is a magnetic valve.
5. the refrigeration system of frost-free refrigerator according to claim 3, it is characterized in that: the signal of described master control borad is mainly derived from the feedback signal of door switch and the temperature signal of refrigerating chamber and refrigerating chamber temperature sensing device.
6. the refrigeration system of frost-free refrigerator according to claim 3, it is characterized in that: the beginning of refrigerator energising refrigeration, control the evaporator fin work that allows earlier by described master control borad, realize the refrigerating chamber fast cooling, remove the moisture content in the humid air in the refrigerating chamber simultaneously.
7. the refrigeration system of frost-free refrigerator according to claim 6 is characterized in that: when freezer temperature reaches design temperature, the work of master board control conversion equipment realizes the conversion of evaporator fin and refrigerating evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100328340A CN101216234A (en) | 2007-12-26 | 2007-12-26 | Frost-free refrigerator cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100328340A CN101216234A (en) | 2007-12-26 | 2007-12-26 | Frost-free refrigerator cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101216234A true CN101216234A (en) | 2008-07-09 |
Family
ID=39622718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100328340A Pending CN101216234A (en) | 2007-12-26 | 2007-12-26 | Frost-free refrigerator cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101216234A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075525A (en) * | 2014-06-28 | 2014-10-01 | 祖新华 | Energy-saving frostless refrigerator |
| CN105890242A (en) * | 2016-05-31 | 2016-08-24 | 合肥美菱股份有限公司 | Device and method for reducing evaporator frosting |
| CN106091504A (en) * | 2016-06-17 | 2016-11-09 | 西安交通大学 | A kind of refrigerator with automatic defrosting system and defrosting control method thereof |
-
2007
- 2007-12-26 CN CNA2007100328340A patent/CN101216234A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075525A (en) * | 2014-06-28 | 2014-10-01 | 祖新华 | Energy-saving frostless refrigerator |
| CN104075525B (en) * | 2014-06-28 | 2016-10-05 | 祖新华 | Energy-conservation frost-free refrigerator-freezer |
| CN105890242A (en) * | 2016-05-31 | 2016-08-24 | 合肥美菱股份有限公司 | Device and method for reducing evaporator frosting |
| CN106091504A (en) * | 2016-06-17 | 2016-11-09 | 西安交通大学 | A kind of refrigerator with automatic defrosting system and defrosting control method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080709 |