CN1888762A - Refrigerator defrosting structure - Google Patents
Refrigerator defrosting structure Download PDFInfo
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- CN1888762A CN1888762A CN 200510014254 CN200510014254A CN1888762A CN 1888762 A CN1888762 A CN 1888762A CN 200510014254 CN200510014254 CN 200510014254 CN 200510014254 A CN200510014254 A CN 200510014254A CN 1888762 A CN1888762 A CN 1888762A
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- refrigerating chamber
- refrigerator
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Abstract
A defrosting structure of the refrigerator, including: the main body of the refrigerator forms the freezing chamber and the cold-storage chamber in it; the evaporator touches the interior wall of the freezing chamber or the cold-storage chamber; the refrigeration cycle that connects with the evaporator and sets at one side of the refrigerator main body; the hydrophilicity film forms at the interior wall of the freezing chamber and / or the cold-storage chamber that connect with evaporator, and drops the condensation water that coagulates at the interior wall of the freezing chamber and / or the cold-storage chamber. The invention can prevent the icing phenomenon of the condensation water during the freezing and cold-storage running process.
Description
Technical field
The present invention relates to a kind of defrosting structure of refrigerator.
Background technology
Generally speaking, refrigerator is divided into direct refrigeration-type and indirect refrigeration formula according to its refrigeration modes, wherein, directly the refrigerator of refrigeration-type is provided with evaporimeter at the inwall of its refrigerating chamber and refrigerating chamber, thereby makes the cold air that is formed at around the evaporimeter carry out free convection and refrigerating chamber and refrigerating chamber are freezed; And the refrigerator of indirect refrigeration mode is provided with fan on the circulating cold air passage when the inwall of refrigerating chamber is provided with evaporimeter, thereby makes the cold air that is formed at around the above-mentioned evaporimeter carry out forced air supply by fan and refrigerating chamber and refrigerating chamber are freezed.
Existing refrigerator has adopted direct refrigeration-type, as shown in Figure 1, in the inside of the refrigerator main body 2 that is made of the shell 2a that forms outward appearance and inner casing 2b, 2c, cut apart formation refrigerating chamber F and refrigerating chamber R up and down, and its front is open shape; And, be connected with refrigerating chamber door 4a to be opened/closed and refrigerating-chamber door 4b separately by hinging manner in the front of above-mentioned refrigerator main body 2; In addition, inner casing 2b, 2c inwall inboard at above-mentioned refrigerator main body are provided with the kind of refrigeration cycle that comprises evaporimeter 10a, 10b.
Certainly, above-mentioned kind of refrigeration cycle comprise can make that cold-producing medium compresses, compressor 6, condenser 8 and capillary 10a, the 10b of condensation, expansion and evaporation.
At this, under most of situation, above-mentioned evaporimeter 10a, 10b are close to above-mentioned refrigerating chamber inner casing 2b inwall, meanwhile, its part determining deviation of being separated by is built in the inner casing 2b inside of above-mentioned refrigerating chamber, and is built-in with other temperature sensor (not shown) on above-mentioned evaporimeter 10a, 10b.In addition, between above-mentioned shell 2a and inner casing 2b, 2c, under the state that is built-in with above-mentioned evaporimeter 10a, 10b, foaming has heat-barrier material 12.
Meanwhile, in the refrigerator of above-mentioned formation, comprise control part (not shown), and can import the cryogenic temperature Tf0 and the refrigerated storage temperature Tr0 of required setting by above-mentioned control part from the outside, meanwhile, receive the temperature information of above-mentioned evaporimeter 10a, 10b from the said temperature sensor, thereby temperature is judged and adjusted according to above-mentioned judged result the work of above-mentioned compressor 6.
In addition,, be provided with the drainpipe 14 that can condense in the condensed water of above-mentioned refrigerating chamber inner casing 2b, 2c one side, meanwhile, also be built-in with the drip tray 16 that to collect the condensed water that flows along above-mentioned drainpipe 14 to external guidance in the lower end of above-mentioned refrigerating chamber R.
Therefore, the operation principle of above-mentioned existing refrigerator is as follows: according to the work of cryogenic temperature Tf0 that imports from above-mentioned control part and refrigerated storage temperature Tr0 adjustment above-mentioned compressor 6, and along with the work of above-mentioned compressor 6, cold-producing medium circulates and finishes compression, condensation, expansion and evaporation process along above-mentioned compressor 6, condenser 8, capillary and evaporimeter 10a, 10b.The liquid refrigerant of the low-temp low-pressure by above-mentioned evaporimeter 10a, 10b and the air of above-mentioned refrigerating chamber F and refrigerating chamber R inside carry out heat exchange, thereby formation cold air, and above-mentioned formed cold air carries out free convection and keeps its inner low-temperature condition at above-mentioned refrigerating chamber F and refrigerating chamber R.
At this moment, temperature in the above-mentioned refrigerating chamber R is higher than the temperature of above-mentioned refrigerating chamber F, and because be built-in with evaporimeter at the inner casing 2c of above-mentioned refrigerating chamber inwall, therefore, compared with the inner casing 2b of above-mentioned refrigerating chamber, at the easier frosting in inner casing 2c surface or the formation condensed water of above-mentioned refrigerating chamber.
Therefore, if inner casing surface frosting at above-mentioned refrigerating chamber, then frost is become the condensed water water droplet by Defrost operation, and on the inner casing 2c surface of above-mentioned refrigerating chamber, if the size of condensed water water droplet surpasses a certain size, then above-mentioned condensed water water droplet will drop down down surfacewise and collect in the above-mentioned drip tray 16 by above-mentioned drainpipe 14.
But because the inwall of the refrigerating chamber of current refrigerator and refrigerating chamber is made of ABS resin, therefore, as shown in Figure 2, the condensed water water droplet of refrigerating chamber and freezer wall is bigger, thereby prolongs the stand-by period till dropping down under the condensed water water droplet.Because of above-mentioned reason, if refrigerate operation after Defrost operation, then condensing because of the inwall at refrigerating chamber has condensed water, thereby can also continue to form thicker frost by regelation, not only reduce heat exchanger effectiveness thus, and form the passage damping, reduce the refrigeration performance.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the defective that existing refrigerator exists, and provide a kind of defrosting structure of refrigerator, even it forms condensed water at refrigerating chamber and freezer wall in the Defrost operation process, it is dropped down rapidly down, thereby prevent freezing and refrigerate the icing phenomenon of the condensed water in the running.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of defrosting structure of refrigerator is characterized in that: be included in the refrigerator main body that its inside is formed with refrigerating chamber and refrigerating chamber; Be contacted with the evaporimeter of above-mentioned refrigerating chamber and/or freezer wall; Link to each other with above-mentioned evaporimeter, thereby be arranged at the kind of refrigeration cycle of above-mentioned refrigerator main body one side; Be formed on and contacted refrigerating chamber of evaporimeter and/or freezer wall, and make the hydrophilic film that drops down under the condensed water that condenses in above-mentioned refrigerating chamber and/or freezer wall.
The defrosting structure of aforesaid refrigerator, wherein hydrophilic film is formed on the aluminium film that is attached to above-mentioned refrigerating chamber and/or freezer wall.
The defrosting structure of aforesaid refrigerator, wherein hydrophilic film is that the inwall that the Ti-O-C compound is overlying on above-mentioned refrigerating chamber and/or refrigerating chamber forms.
The defrosting structure of aforesaid refrigerator wherein in order to possess sterilization/antibacterial functions, also comprises Ag, Cu and/or Co compound on the above-mentioned hydrophilic film.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the refrigerator sectional side view of prior art;
Fig. 2 is the hydrophily schematic diagram of current refrigerator inwall;
Fig. 3 and Fig. 4 are the refrigerator sectional side view and the flat sectional drawing of defrosting structure of the present invention;
Fig. 5 is the hydrophily schematic diagram of refrigerator inwall of the present invention.
The number in the figure explanation:
52: refrigerator main body 54a: refrigerating chamber door
54b: refrigerating-chamber door 56: compressor
58: condenser 60a: refrigerating chamber one side evaporimeter
60b: refrigerating chamber one side evaporimeter 62: heat-barrier material
64: control part 70: pipe
70h: cold air dispensing orifice 72: pipe heat-barrier material
80: air-supply arrangement 82: blowing fan
84: motor 86: fan drum
90: the aluminium film
The specific embodiment
As shown in Figures 3 and 4, adopt the refrigerator of defrosting structure of the present invention, be the inside of the refrigerator main body 52 of open shape in its front, its downside is formed with refrigerating chamber F, and side is formed with refrigerating chamber R thereon; In the front of above-mentioned refrigerator main body 52, be connected with refrigerating chamber door 54a and refrigerating-chamber door 54b by hinging manner; Inwall at above-mentioned refrigerator main body 52 is built-in with the kind of refrigeration cycle that comprises evaporimeter 60a, 60b; And be covered with hydrophilic film at partial section with the contacted refrigerating chamber one side inner casing 52c of above-mentioned evaporimeter 60b.
At this, above-mentioned refrigerator main body 52 is forming between the shell 52a and inner casing 52b, 52c of outward appearance, and foaming is formed with heat-barrier material 62 under the situation of various parts being built-in with; And, be formed with above-mentioned refrigerating chamber F and refrigerating chamber R in above-mentioned inner casing 52b, 52c inboard; In addition, on above-mentioned refrigerating chamber one side inner casing 52c, for the ease of forming circulating cold air passage A, along the long circulating cold air groove 52h that is formed with longways of above-below direction.
Secondly, above-mentioned evaporimeter 60a, 60b are by two superimposed forming of metallic plate that are formed with refrigerant tube grooves, and be divided into refrigerating chamber one side evaporimeter 60a and the refrigerating chamber one side evaporimeter 60b that is separately set in above-mentioned refrigerating chamber F and refrigerating chamber R one side separately, in addition, for the cold-producing medium between flows, above-mentioned refrigerating chamber one side evaporimeter 60a and refrigerating chamber one side evaporimeter 60b interconnect.
At this moment, above-mentioned refrigerating chamber one side evaporimeter 60a is built in that to be positioned at above-mentioned refrigerating chamber F inner and can food container, on the shelf 55a of partition space, and above-mentioned refrigerating chamber one side evaporimeter 60a is close to the inner casing 52 of above-mentioned refrigerating chamber and establishes, and the circulating cold air that above-mentioned refrigerating chamber one side evaporimeter 60b only is affixed on above-mentioned refrigerating chamber is advisable with the inwall of groove 52h.
Certainly, above-mentioned evaporimeter 60a, 60b are connected in expansion gears (not shown) such as compressor 56, condenser 58 and capillary or electronic expansion valve, thereby cold-producing medium is circulated and form kind of refrigeration cycle.
Meanwhile, be built-in with temperature sensor 9 (not shown), and each temperature sensor links to each other with the control part 64 of regulating various component parts work in above-mentioned evaporimeter 60a, 60b one side.Above-mentioned control part 64 is according to the work of the temperature signal control above-mentioned compressor of being imported from the said temperature sensor 56.
Secondly, with in the groove 52, be provided with the pipe 70 that can form circulating cold air passage A in above-mentioned circulating cold air, meanwhile, air-supply arrangement 80 links to each other with above-mentioned control part 64.Therefore, even aforementioned tube 70 is arranged at circulating cold air with in the groove 52, do not conflict mutually with the shelf 55b of the placement food that is positioned at refrigerating chamber R yet.
Particularly, aforementioned tube 70 is tabular and is formed with suction inlet in the top, and at the downside two ends of above-mentioned suction inlet, forms a plurality of cold-producing medium dispensing orifice 70h mutually across a certain distance, and its two ends are located in above-mentioned circulating cold air with in the groove 52h.And, because of being arranged at above-mentioned circulating cold air in aforementioned tube 70 with under the state in the groove 52h, the inner casing 52c of the front of aforementioned tube 70 and above-mentioned refrigerating chamber one side forms same plane, therefore, compare with existing direct-cooling type refrigerating chamber, can prevent the minimizing of refrigerating chamber internal capacity.
At this moment, for making by above-mentioned suction inlet inhaled air in above-mentioned circulating cold air passage A process of flowing, even the passage damping takes place also can be guaranteed to flow smoothly by above-mentioned cold air dispensing orifice 70h, above-mentioned cold air dispensing orifice 70h is from upper end to the lower end of aforementioned tube 70 and becomes big shape gradually, and its size can be identical.
Meanwhile, be attached with certain thickness heat-barrier material 72 at the back side of aforementioned tube 70, and because be attached with heat-barrier material 72 at the back side of pipe 70, even with the surperficial frosting of groove 52h or the condensed water that condenses, also can cover by aforementioned tube 70 in the circulating cold air that is provided with above-mentioned refrigerating chamber one side evaporimeter 60b.Moreover, because heat-blocking action, the lateral surface of the pipe 70 that links to each other with above-mentioned refrigerating chamber R one side can the frosting or the condensed water that condenses, thereby guarantees the refrigerating environment than health.
In addition, lower end in aforementioned tube 70, even being connected with the frost of forging with groove 52h surface in above-mentioned circulating cold air dissolves, the also drainpipe (not shown) that water outwards can be guided away, meanwhile, at the end of above-mentioned drainpipe, be provided with the drip tray (not shown) that to collect condensed water, and above-mentioned drip tray is arranged to be drawn to outside form and is advisable.
Secondly, above-mentioned air-supply arrangement 80 comprises the blowing fan 82 that the cold air of finishing circulation at above-mentioned refrigerating chamber R is sent to above-mentioned circulating cold air passage A; Drive the motor 84 of said fan 82; And the fan drum 86 of built-in said fan 82 and motor 84, and said fans shell 86 is arranged at aforementioned tube 70 suction inlets one side, above-mentioned motor 84 links to each other with above-mentioned control part 64.
At this moment, said fan 82 adopts and can be advisable along the axial flow fan that direction of principal axis is sent cold air, and furnish article across a certain distance mutually in the place ahead of said fans shell 86, be advisable thereby the suction passage damping is reduced to minimum, and it is at interval according to the diameter decision of said fan 82.
Secondly, above-mentioned control part 64 controls comprise the work of the miscellaneous part of above-mentioned compressor 56 and motor 84, when receiving the detected temperature of said temperature sensor and after the cryogenic temperature Tf0 and refrigerated storage temperature Tr0 of outside input, control each parts in order to reach the cryogenic temperature that sets and refrigerated storage temperature.
At this moment, if the temperature of above-mentioned refrigerating chamber R is higher than the highest refrigerated storage temperature TrM that sets, above-mentioned control part 64 is when driving above-mentioned compressor 56, and first rotary speed rotation said fan 82 with regulation refrigerates operation with this.
But, if the temperature of above-mentioned refrigerating chamber R is lower than the minimum refrigerated storage temperature Trm that sets, above-mentioned control part 64 stops above-mentioned compressor 56, thereby the cold-producing medium that makes relatively-high temperature is by above-mentioned refrigerating chamber one side evaporimeter 60b, meanwhile, said fan 82 is rotated with second rotary speed that is higher than above-mentioned first rotary speed, thereby the higher relatively air of temperature is circulated, carry out to dissolve the Defrost operation of knot at the frost on above-mentioned refrigerating chamber one side inner casing 52c and refrigerating chamber one side evaporimeter 60b surface with this.
Especially, even above-mentioned circulating cold air is made of ABS resin with groove 52c, because be covered with above-mentioned hydrophilic film with one side that above-mentioned refrigerating chamber one side evaporimeter 60b directly contacts in groove 52c in above-mentioned circulating cold air.And as shown in Figure 5, can utilize adhesive or double faced adhesive tape can reduce the capillary of condensed water and use on the groove 52h attached to above-mentioned refrigerating chamber one side circulating cold air through the aluminium film 90 that hydrophily is handled.
Certainly, in order to make its plasma treatment of bearing high temperature, except aluminium, can also adopt various metallic films.
Particularly, above-mentioned hydrophilic film can utilize a kind of Ti-O-C compound of titanium compound, adopts the plasma mode to be overlying on the above-mentioned aluminium film 90, in addition, in order to have microbe killing properties and antibiotic property, except titanium compound, can also adopt Ag, Cu and/or Co compound.
In addition, do not form hydrophilic film in addition, and directly utilize the resin material that comprises surfactant to make above-mentioned refrigerating chamber one side circulating cold air groove 52h.
Certainly, can utilize above-mentioned hydrophilic film to form whole above-mentioned refrigerating chamber one side inner casing, and go for the refrigerating chamber and the refrigerating chamber inner casing of existing refrigeration modes.
The effect of the defrosting structure of refrigerator of the present invention is as follows:
Freezing and the refrigeration operation when beginning, cold-producing medium circulates along compressor 56, condenser 58 and evaporimeter 60a, 60b by the effect of above-mentioned compressor 56, and the cold air around the above-mentioned refrigerating chamber one side evaporimeter 60a carries out free convection and directly refrigerating chamber F freezed.Meanwhile, work along with above-mentioned motor 84, said fan 82 is rotated with first rotary speed, thereby make the air of finishing the circulation in refrigerating chamber R carry out forced air supply and carry out heat exchange with above-mentioned refrigerating chamber one side evaporimeter 60b along above-mentioned circulating cold air passage A, afterwards, spue to go forward side by side by above-mentioned cold air dispensing orifice 70h and connect refrigeration in the ranks to refrigerating chamber R.
At this moment, if the user opens above-mentioned refrigerating-chamber door 54b or puts into the food of heat to above-mentioned refrigerating chamber R, though keep lower temperature with groove 52h with the circulating cold air that above-mentioned refrigerating chamber one side evaporimeter 60b directly contacts, but the temperature of the air of above-mentioned refrigerating chamber R one side sharply rises, so the moisture in the high temperature air becomes condensed water or frosting in above-mentioned circulating cold air with the hydrophilic film surface condensation of groove 52h one side.
Certainly, when the condensed water that condenses at above-mentioned hydrophilic film, because the surface tension of condensed water reduces, it will drop down under above-mentioned hydrophilic film rapidly.
In addition, if in above-mentioned hydrophilic film frosting, above-mentioned control part 64 will carry out Defrost operation, promptly, under the state that stops above-mentioned compressor 56, said fan 84 is rotated with second rotary speed, thereby the air that makes the higher refrigerating chamber of temperature carries out forced air supply and dissolves the frost of knot on hydrophilic film, and formed condensed water will drop down under rapidly along above-mentioned hydrophilic film, therefore, even be converted to freezing and the refrigeration operation from the Defrost operation state, condensed water can regelation or the thicker frost of formation.
Certainly, make above-mentioned hydrophilic film be attached to the structure of above-mentioned refrigerating chamber one side inner casing 52b, also can show identical effect and effect.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
The effect of invention
The defrosting structure of refrigerator of the present invention, because the inwall at refrigerating chamber and/or refrigerating chamber forms hydrophilic film, even the frost of airborne moisture of refrigerating chamber or dissolving forms water droplet at the inwall of refrigerating chamber or refrigerating chamber, but because hydrophilic film reduces the surface tension of condensed water, thereby condensed water is dropped down under rapidly, effectively carry out defrosting work, have the increase heat exchanger effectiveness, reduce the passage damping, guarantee the performance of freezing.
Claims (4)
1, a kind of defrosting structure of refrigerator is characterized in that: be included in the refrigerator main body that its inside is formed with refrigerating chamber and refrigerating chamber; Be contacted with the evaporimeter of above-mentioned refrigerating chamber and/or freezer wall; Link to each other with above-mentioned evaporimeter, thereby be arranged at the kind of refrigeration cycle of above-mentioned refrigerator main body one side; Be formed on and contacted refrigerating chamber of evaporimeter and/or freezer wall, and make the hydrophilic film that drops down under the condensed water that condenses in above-mentioned refrigerating chamber and/or freezer wall.
2, the defrosting structure of refrigerator according to claim 1 is characterized in that: above-mentioned hydrophilic film is formed on the aluminium film that is attached to above-mentioned refrigerating chamber and/or freezer wall.
3, the defrosting structure of refrigerator according to claim 2 is characterized in that: above-mentioned hydrophilic film is that the inwall that the Ti-O-C compound is overlying on above-mentioned refrigerating chamber and/or refrigerating chamber forms.
4, the defrosting structure of refrigerator according to claim 3 is characterized in that: in order to possess sterilization/antibacterial functions, also comprise Ag, Cu and/or Co compound on the above-mentioned hydrophilic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510014254XA CN100498150C (en) | 2005-06-30 | 2005-06-30 | Refrigerator defrosting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510014254XA CN100498150C (en) | 2005-06-30 | 2005-06-30 | Refrigerator defrosting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1888762A true CN1888762A (en) | 2007-01-03 |
| CN100498150C CN100498150C (en) | 2009-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510014254XA Expired - Fee Related CN100498150C (en) | 2005-06-30 | 2005-06-30 | Refrigerator defrosting structure |
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| Country | Link |
|---|---|
| CN (1) | CN100498150C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116557A (en) * | 2011-03-31 | 2011-07-06 | 合肥美的荣事达电冰箱有限公司 | Air-cooled circulating system for refrigerator and air-cooled refrigerator with same |
| CN102878753A (en) * | 2012-11-05 | 2013-01-16 | 杨丛丛 | Refrigerator convenient to clean |
| CN112944763A (en) * | 2019-12-11 | 2021-06-11 | 博西华电器（江苏）有限公司 | Refrigeration equipment control method and refrigeration equipment |
-
2005
- 2005-06-30 CN CNB200510014254XA patent/CN100498150C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116557A (en) * | 2011-03-31 | 2011-07-06 | 合肥美的荣事达电冰箱有限公司 | Air-cooled circulating system for refrigerator and air-cooled refrigerator with same |
| CN102878753A (en) * | 2012-11-05 | 2013-01-16 | 杨丛丛 | Refrigerator convenient to clean |
| CN112944763A (en) * | 2019-12-11 | 2021-06-11 | 博西华电器（江苏）有限公司 | Refrigeration equipment control method and refrigeration equipment |
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| Publication number | Publication date |
|---|---|
| CN100498150C (en) | 2009-06-10 |
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| C14 | Grant of patent or utility model | ||
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Owner name: TAIZHOU LG ELECTRONICS FREEZER CO., LTD. Free format text: FORMER OWNER: LG ELECTRONICS ( TIANJIN ) ELECTRICAL APPLIANCES CO., LTD. Effective date: 20091225 |
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Effective date of registration: 20091225 Address after: No. 2 Yingbin Road, Taizhou Economic Development Zone, Jiangsu Patentee after: Taizhou LG Electronics Refrigerator Co., Ltd. Address before: Beichen District, Tianjin Xing Lake Road Patentee before: Lejin Electronic and Electric Appliance Co., Ltd. (Tianjin) |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20160630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |